Adult

The Fixture MIPS brings confident mountain bike style and breezy ventilation together in a compact design that complements nearly any ride -- especially when there's dirt under tread. Some of Giro's best features, like In-Mold construction coupled with the ease and comfort of their acclaimed Roc Loc Sport fit system, offer the versatility you need to ride everything from fire-road adventures to swooping singletrack trails. The Roc Loc also is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts.

At just 850 grams, the Sanction is our low-profile full-face helmet aimed at dirt shredders and BMX riders who don’t need the more robust Full-9 or Transfer-9. The Sanction has become the choice of adults who want full-face protection but prefer a smaller size and profile. If you’re riding a chairlift, go with a Full-9 or Transfer-9. But if you’re pedaling BMX or dirt jumps, this helmet will serve you well.

The Vanquish MIPS is the pinnacle of high-performance road cycling helmets, featuring the innovative TransformAir design that actively streamlines airflow to reduce drag. Inside the Vanquish is an EPS liner with progressive layering, and Giro's renowned RocLoc Air system seamlessly integrated with MIPS technology to enhance comfort and cooling power while providing an additional measure of protection. So whether you're hammering off the front, smashing an Ironman course, or laying down maximum wattage in the dash to the finish line, the Vanquish shapes the wind to work for you.

Bell have worked tirelessly to refine the fit of its helmets so that they represent the pinnacle of comfort. This philosophy starts with the flagship Z20 and extends throughout the range. The Falcon represents the same attention to fit and finish that defines quality. It utilizes integrated MIPS, offering comprehensive energy management as well as allowing for a sleeker, more compact overall design. Multi-adjustable Float Fit retention and Bell's unique Sweat Guide further enhance fit, while generous vents and wind-cheating aerodynamics provide ample airflow to keep things cool. The Falcon is the easy choice for all roads, wherever they may lead. - 18 vents - Compliance: CPSC bicycle - MIPS-equipped - MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts. - Construction: Fusion in-mold polycarbonate shell - a process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. - Lightweight internal polycarbonate roll cage - Fit System: Float fit - a minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS) - Retention System: No-twist tri-glides: quick-adjust fasteners that help keep straps flat and properly positioned - Interior: Sweat guide pad design pulls moisture away from the brow pad and away from eyewear - Rear reflective strip - 297 grams (size M)

For trail or town Built for riders who live active lifestyles and want to stay protected, the Quantum cycling helmet looks just as good as it fits. Featuring MIPS, Multi-directional Impact Protection System, superior ventilation, and excellent coverage. Get it all and even more with a removable visor allowing Quantum to be your go-to helmet no matter what type of riding. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Key features - MIPS Brain Protection System - The Boa System lets riders easily secure and adjust helmet fit with one hand - In-mold composite skeleton increases helmet integrity for larger vent variations - Soft, comfortable, moisture-wicking, and washable helmet pads - Internal, recessed channels move airflow over your head to stay cool and dry - Removable snap-on visor and port covers provide multiple looks to fit your style - LockDown dividers make helmet strap management clean and are easy to adjust - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership

The Cormick MIPS offers a comfortable fit with deep coverage and open ventilation in a design that is suitable for nearly any ride. It’s built using In-Mold construction to reduce weight while enhancing durability to stand up to everyday use. The ease and comfort of Giro's acclaimed Roc Loc Sport MIPS fit system makes fitting as easy as turning a dial, and the fit system is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts. When you put it all together, you get the versatility you need to ride everything from forested fire-roads to swooping singletrack trails to the city streets.

For trail or town Built for riders who live active lifestyles and want to stay protected, the Quantum cycling helmet looks just as good as it fits. Featuring MIPS, Multi-directional Impact Protection System, superior ventilation, and excellent coverage. Get it all and even more with a removable visor allowing Quantum to be your go-to helmet no matter what type of riding. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Key features - MIPS Brain Protection System - The Boa System lets riders easily secure and adjust helmet fit with one hand - In-mold composite skeleton increases helmet integrity for larger vent variations - Soft, comfortable, moisture-wicking, and washable helmet pads - Internal, recessed channels move airflow over your head to stay cool and dry - Removable snap-on visor and port covers provide multiple looks to fit your style - LockDown dividers make helmet strap management clean and are easy to adjust - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership

Take your protection to the next level. Bontrager Specter WaveCel offers the best in versatility and comfort for everyday rides on roads, trails, gravel, and more. From dirt to pavement, fast or slow, this new wave of protection delivers the confidence you need anywhere you ride or race. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. - WaveCel advanced helmet technology - The Boa System lets you easily secure and adjust helmet fit with just one hand - Fidlock magnetic buckle fastens effortlessly for a quick, secure fit - Highly ventilated design offers more airflow to keep you cool - Soft, comfortable, moisture-wicking, and washable helmet pads - Reflective elements on back of helmet offer enhanced visibility to be seen - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Sizing: - Small: 51-57cm - Medium: 54-60cm - Large: 58-63cm

Our most innovative helmet with the added protection of MIPS for serious riders looking for maximum cooling and an aerodynamic advantage. Cool got aero Our Velocis MIPS road bike helmet pairs pro peloton performance with all-day riding comfort. This premium cycling helmet is super light and sleek, allowing you to go faster and stay cool, so you can turn up the jets without overheating. Product details - MIPS Brain Protection System - The Boa System lets you easily secure and adjust helmet fit with one hand - Internal, recessed channels move airflow over your head to keep you cool and dry - 37.5 fit pads pull moisture away from your skin to help maintain ideal comfort - Sunglass port allows easy access to securely store glasses when not in use - Viper Red, White, and Visibility Yellow colorways come with Team Trek-Segafredo sticker kit - Includes removable NeoVisor for all the benefits of a cycling cap without extra bulk - Crash Replacement Guarantee provides free helmet replacement if involved in a crash within the first year of ownership

Ultra-versatile helmet that is light, cool, and sleek with the added protection of MIPS and the convenience of magnetic light mounts. If you could only buy one helmet, this is the one. Whether your finish line is on the race course or to the front door of your destination the Bontrager Circuit MIPS road helmet will deliver. Equipped will all the best features including MIPS brain protection system, Boa fit system for superior comfort and security, and the Blendr mount system for light and camera integration. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Key features - MIPS Brain Protection System - Blendr mount system easily integrates GoPro camera and Bontrager lights accessories - The Boa System lets riders easily secure and adjusts helmet fit with one hand - In-mold composite skeleton increases helmet integrity for larger vent variations - AgION antimicrobial pads wick moisture and completely eliminate odors naturally - LockDown dividers make helmet strap management clean and are easy to adjust - Internal, recessed channels move airflow over your head to stay cool and dry - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership

A stylish road helmet with advanced WaveCel technology that balances comfort and performance for all riders who value safety. A major advancement in the protection against cycling-related head injuries Starvos WaveCel is a versatile, high-value cycling helmet for new-to-seasoned riders who want the added protection of WaveCel, a leading technology in the protection against cycling-related head injuries. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. Product details - WaveCel advanced helmet technology - Virginia Tech 5 STAR rating - Intuitive, one-handed Headmaster fit system makes height and circumference adjustments easy - LockDown dividers make helmet strap management clean and easy to adjust - Soft, comfortable, moisture-wicking, and washable helmet pads - Available in XL sizing - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Specifications - Size (head circumference): Small (51-57cm) / Medium (54-60cm) / Large (58-63cm) / X-Large (60-66cm) - Fit system: Headmaster II - Pad material: Moisture-wicking pads - Buckle type: Standard buckle - Includes: Crash Replacement Guarantee - Weight: 300g (Small) / 335g (Medium) / 370g (Large) / 385g (X-Large)

Capable coverage, comfortable protection Starvos MIPS women's road helmet offers ample protection, airflow management, and comfort with the widest range of head sizes. A clear choice for cyclists of all levels. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Key features - MIPS Brain Protection System - The Boa System lets riders easily secure and adjust helmet fit with one hand - In-mold composite skeleton increases helmet integrity for larger vent variations - Soft, comfortable, moisture-wicking and washable helmet pads - FlatLock dividers make helmet strap management simple through fixed position fit - Internal, recessed channels move airflow over your head to stay cool and dry - Reflective elements on back of helmet - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership

Capable coverage, comfortable protection Starvos MIPS road helmet offers ample protection, airflow management, and comfort with the widest range of head sizes. A clear choice for cyclists of all levels. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Key features - MIPS Brain Protection System - The Boa System lets riders easily secure and adjust helmet fit with one hand - In-mold composite skeleton increases helmet integrity for larger vent variations - Soft, comfortable, moisture-wicking and washable helmet pads - FlatLock dividers make helmet strap management simple through fixed position fit - Internal, recessed channels move airflow over your head to stay cool and dry - Reflective elements on back of helmet - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership

When you're riding serious trails, you need serious protection. Bontrager Blaze WaveCel offers the best in performance and protection on any trail, from flowy singletrack to gnarly downhills. It’s built for style, comfort, and performance, and equipped with the industry's best safety tech for whatever trails you roam. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. - WaveCel advanced helmet technology - The Boa System lets you easily secure and adjust helmet fit with just one hand - Fidlock magnetic buckle fastens effortlessly for a quick, secure fit - Front Blendr mount system easily integrates GoPro camera and Bontrager light accessories - AgION antimicrobial pads wick away moisture and eliminate odors naturally - Additional NoSweat pad with silicone channel keeps sweat out of eyes for constant clarity - Drop-in coverage on back of helmet offers extended protection - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Sizing: - Small: 51-57cm - Medium: 54-60cm - Large: 58-63cm

Bontrager Charge WaveCel Commuter is a fashion-forward helmet that earns top marks in style and safety. It’s perfect for commutes, e-bike rides, and everyday adventures, and it's built with the most advanced helmet safety tech available so you don’t have to choose between fashion and function. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. - WaveCel advanced helmet technology - The Boa System lets you easily secure and adjust helmet fit with just one hand - Fidlock magnetic buckle fastens effortlessly for a quick, secure fit - Rear Blendr mount system easily integrates Bontrager light accessories - Soft, comfortable, moisture-wicking, and washable helmet pads - Built-in visor provides constant coverage against sun and rain - Reflective elements on back of helmet offer enhanced visibility to be seen - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Sizing: - Small: 51-57cm - Medium: 54-60cm - Large: 58-63cm

Braaaaaap not included The Rally MIPS mountain bike helmet raises the bar in comfort and protection. Equipped will all the best features including MIPS brain protection system, Boa fit system for superior comfort and security, and the Blendr mount system for light and camera integration. Plus extended coverage and ample vents will keep you riding all day on the toughest trails. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Key features - MIPS Brain Protection System - The Boa System lets riders easily secure and adjust helmet fit with one hand - Blendr mount system easily integrates GoPro camera and Bontrager lights accessories - Drop-in coverage on back of helmet offers extended protection - In-mold composite skeleton increases helmet integrity for larger vent variations - FlatLock dividers make helmet strap management simple through fixed position fit - Internal, recessed channels move airflow over your head to stay cool and dry - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership

The original Flux helmet was designed with aggressive trail riders in mind - becoming a best-seller in the mountain bike industry for over a decade. 12 years later, Fox brings you new levels of performance with the release of a completely redesigned Flux helmet. With innovative materials such as their proven Varizorb multi-density EPS, a 300-degree retention system, fully adjustable visor and MIPS option, the new Flux redefines open face mtb helmets for the mountain bike riders of today. TECHNICAL DETAILS - MIPS impact protection system reduced rotational forces in a crash - X-Static liner inhibits the growth of bacteria, eliminating human-based odors - Fidlock Snap magnetic buckle provides quick entry and exit with maximum security - Varizorb multi-density EPS for enhanced impact absorption - Internal cage provides additional strength - 300-degree retention system provides full wrap for premium fit and comfort - Large retention dial for one-handed, on trail adjustment with or without gloves - Increased coverage for aggressive all mountain/trail riding - Fixed anchor Y-strap system simplifies adjustment and improves fit - 14 Big Bore vents provide superior airflow - Full range adjustment visor

The ideal companion on trail and XC tours. The TrailXC provides all round protection with Inmold technology in which the helmet is directly connected with the absorbing EPS material. The high number of ventilation openings, as well as the placement angles and integrated channels, provide lots of air circulation and excellent cooling. The two-component adjustment unit with precision interlocking, "ErgoFit Ultra" creates a comfortable and extremely exact fit vertically and horizontally. The visor is easily removable and the lining is washable. The TrailXC helmet series fulfills the European safety standard, EN1078 as well as the American CPSC. - External and internal ventilation channels - 19 openings - Adjustable straps - Sizes (head circumference): X-Small (49-54cm), Small/Medium (54-58cm), Medium/Large (58-62cm) Key features: - InMold: Optimal strength, weight and ventilation. Shock absorbing EPS (Expanded Polystyrene) foam is molded directly to an outer hard shell. - Ergo-Fit Ultra: Lightweight, flexible cradle keeps the helmet securely in position without causing heat build up or discomfort. - Micro-dial adjustment: Dial disc. Micro adjustments. Easy to access and to adjust to personal comfort.

Bern's cycling-focused Melrose helmet includes 16 air vents for maximum cooling, while retaining the signature look and style of all Bern helmets. The tough PVC shell and liquid-injected foam yield a lightweight helmet with heavy-duty protection. To bring just a little more style to the Melrose, Bern includes a flippable visor.

Built on our legendary Full-9 platform, the Full-9 Fusion is our no-compromise full-face helmet for riders who hold nothing back. With a premium fiberglass shell, a wide field of view, Overbrow Ventilation intakes, a plush interior, and MIPS technology, this helmet delivers world-class quality, fit and features. It doesn’t matter if you are chasing the clock on a downhill run, or sending big gaps at your favorite bike park, if you are a rider who loves to shuttle to the top and then shred all the way down, this helmet is built for you. SIZES - X-Small = 51–53 cm - Small = 53–55 cm - Medium = 55–57 cm - Large = 57–59 cm - X-Large = 59–61 cm - XX-Large = 61–63 cm

Ticket to Ride Usually, when it comes to value, there's going to be some sort of compromise. With the Avenue, we took a hard line against that. We gave it carefully sculpted vents and a graceful shape. We packed it with the same features and careful touches that define our flagship helmets, such as our Sweat Guide liner and No-Twist Tri-Glides for ease of adjustment. Not to mention integrated MIPS. - MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts. - What was once ErgoDial now has an improved dial feel and function (no longer requires a push to turn) and is sleeker and less bulky. - Quick-adjust fasteners that help keep straps flat and properly positioned - Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear. - 53-60cm / 20.85-23.6-inch

The Z20 is the result of years spent analyzing how helmets fit, optimizing aerodynamics, reviewing test data, gathering real-world feedback, and applying our cumulative knowledge of impact management. Our unique progressive layering energy management system utilizes two separate layers of hard-shelled EPS foam in addition to Integrated MIPS—enabling us to improve impact performance via multi-density foam and at the same time deliver a more compact overall shape, sleeker design and maximized ventilation. And thanks to a smart combination of the MIPS layer and retention system, the Z20 sets a new standard in fit and comfort. Superb fit is further optimized with the Float Fit Race retention system, featuring height- and width-adjustable cradles and an intuitive, easy-to-use tension dial, and then finished off with our comfortable and sweat-wicking X-Static padding. No matter how long, hot or hard the ride is, the Z20 will ensure that cool heads prevail. SIZES - Small = 52–56 cm - Medium = 55–59 cm - Large = 58–62 cm

Ticket to Ride Usually, when it comes to value, there's going to be some sort of compromise. With the Avenue, we took a hard line against that. We gave it carefully sculpted vents and a graceful shape. We packed it with the same features and careful touches that define our flagship helmets, such as our Sweat Guide liner and No-Twist Tri-Glides for ease of adjustment. Not to mention integrated MIPS. But we didn't stop there. We took it one step further by offering an LED version. We've incorporated a bright, 20-lumen rear LED into our easy-to-use Ergo Fit system. Its unobtrusive, highly visible, easily rechargeable with an included micro USB, and it just might make the difference between being seen or not. Specs - MIPS: Integrated MIPS (multi-directional impact protection system) - MIPS is designed to reduce rotational forces that can result from certain impacts. By integrating the MIPS slip-plane into the fit system, we are able to reduce complexity and weight for a compact, better ventilated helmet that fits more closely to the head. - Construction: Fusion in-mold polycarbonate shell - a process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. - Sport: cycling - Number of vents: 18 vents - Interior/liner type: Sweat guide pad design pulls moisture away from the brow pad and away from eyewear - Fit system: Ergo Fit LED - sleek, easy-to-use dial system for one-handed adjustments (integrated with MIPS layer) - Certification: CPSC bicycle - Sizing: 50 – 57cm, 19.7 – 22.4-inch

It is widely regarded that increased visibility equates to increased safety. To that end, we have taken our classy all-rounder, the Formula, and incorporated a bright, 20-lumen rear LED into the fit system. It’s unobtrusive, highly visible, easily rechargeable with an included micro USB, and it just might make the difference between being seen and not. - Small = 52–56cm - Medium = 55–59cm - Large = 58–62cm

From long climbs to rowdy, technical descents, the Montara MIPS helmet inspires your ride no matter where the trail takes you. Its compact shape offers deep, confident coverage, and the Roc Loc Air fit system boosts ventilation while improving fit. In addition to this helmet’s already impressive cooling power, it’s outfitted with a hydrophilic, anti-microbial brow pad that can absorb up to ten times its weight in sweat. Giro designed the Montara MIPS to have full goggle integration, with strap grippers on the back of the helmet, and a P.O.V. Plus visor that allows you to lift the visor and place your goggles on the front of the helmet. Yet another great feature is the breakaway camera mount integration – a clever interface for your favorite light or camera.

Fit, Protection, Style After years of research and development, the Troy Lee Designs Team is proud to introduce our latest creation - the A1 helmet. Here at TLD, styling, graphics, fit, function, and safety are key in everything we create. This lightweight, fully encapsulated all-mountain helmet utilizes maximum coverage and dimension to keep you safe and protected in all riding conditions. Whether you're charging single track, riding dirt jumps, or grinding out miles on the XC bike, the A1 helmet offers the premium fit, protection, and style you want. - Reinforced polycarbonate shell in-molded with EPS liner extends down the sides and back of the head for maximum protection and durability - MIPS brain protection system reduces rotational forces to the brain - 8 pressurized intake passages draw in cool air for maximum ventilation - 8 rear vacuum vortex outlets help exhaust helmet and draw heat from head - Triple position adjustable retention system allows customized fit for various eyewear, head shape, and riding styles - Single piece, ultra plush, removable, and washable comfort liner made of anti-microbial moisture wicking material for a dry, comfortable feel - Adjustable, moto-inspired visor with anodized aluminum hardware - Race-inspired styling - CPSC 1203, CE EN 107B, AS/NZS 2063 certified - 5-Star Rated by VA Tech Testing Institute Bicycle Helmet Testing lab

ABUS' Hyban is the ideal helmet for city riders, commuters, and BMX riders. The helmet features ABS hard cover technology as well as a ZOOM precise adjustment retention system for a robust, yet lightweight, flexible plastic that offers safety, stability, and a comfortable fit. The Hyban also features a large, integrated LED rear light with 180-degree visibility for increased rider safety. 13 air inlets and 5 outlets ensure optimal ventilation. The interior padding is removable and washable for maximum comfort, and the soft-touch straps are very easy to adjust. The visor snaps on and off quickly for rider preference.

A cross-over full-face helmet, developed for competitions. The integrated VORTEX ventilation channels guarantee continuous air circulation and therefore make the Xult an optimal solution for Enduro riders. The utilized FRP (fiber reinforced polymer) shell increases durability while still maintaining a minimum weight. The technology enables a minimization of the total volume, thereby reducing the risk of brain injury from the effects of rotational forces. The specially implemented shape gives the helmet additional strength and durability. Xmatter inserts in the important absorption zones improve impact cushioning and reduce torsional forces. The ergonomic padding system delivers a high degree of comfort without reducing the air circulation. Antibacterial Coolmax transports the moisture away from the skin, thereby keeping you dry and comfortable. The ergonomically shaped jaw padding ensures a perfect degree of comfort and a perfect fit, and the integrated EPR (Emergency Padding Release) provides quick release of the jaw padding in the case of a rescue. The Xult helmet series fulfills the European safety standard, EN1078 as well as the American CPSC and ASTM for DH. - Adjustable visor - Washable padding - Double-D safety closing - Sizes: Small (53-56cm), Medium/Large (57-59cm), Large/X-Large (60-62cm) head circumference Key technologies - VORTEX: Large intake vents are directly linked via channels in the EPS with multiple exhaust vents to keep cool air flowing through the helmet and ensure warm air exits. - X-RAIL: Xmatter inserts positioned across major impact zones act as a buffer between shell and EPS, deforming on soft impacts and stiffening on harder impacts to both increase helmet longevity and aid in dissipation of rotational forces. An integrated molded mouth guard absorbs frontal impacts. - EPR: Emergency Padding Release system allows the helmet to be easily removed in the event of an emergency. Ergonomically shaped cheek pads with optional sizes ensure a perfect fit while high-tech antibacterial Coolmax material wicks moisture away from skin to keep you dry and comfortable. - FRP: FRP (fiber reinforced polymer) increases shell strength while reducing overall weight. The rail-based design further increases structural integrity without adding unnecessary volume.

COOLER, FASTER IN A PROTECTIVE PACKAGE-THE A2 The A2 helmet redefines mountain bike safety, style, comfort and ventilation. The first helmet in its class to combine EPP (for slow speed impacts) and EPS (for high speed impacts) in one sleek package, that will set a new benchmark for mountain bike helmets.

Ticket to Ride Usually, when it comes to value, there's going to be some sort of compromise. With the Avenue, we took a hard line against that. We gave it carefully sculpted vents and a graceful shape. We packed it with the same features and careful touches that define our flagship helmets, such as our Sweat Guide liner and No-Twist Tri-Glides for ease of adjustment. Not to mention integrated MIPS. But we didn't stop there. We took it one step further by offering an LED version. We've incorporated a bright, 20-lumen rear LED into our easy-to-use Ergo Fit system. Its unobtrusive, highly visible, easily rechargeable with an included micro USB, and it just might make the difference between being seen or not. - MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts. - What was once ErgoDial now has an improved dial feel and function (no longer requires a push to turn) and is sleeker and less bulky. - Quick-adjust fasteners that help keep straps flat and properly positioned - Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear - 53-60cm / 20.85-23.6-inch