Skip to main content

Giro Source MIPS Helmet

Giro Source MIPS Helmet
  • Color: Matte Black Fade
  • Color: Matte Chalk
  • Color: Matte Portaro Grey
  • Color: Matte Harbor Blue
  • Color: Matte Metallic Black/Ano Lime
  • Color: Matte Trail Green
Please select options


The Source MIPS helmet combines advanced performance and protection in a rugged, trail-ready design. Featuring deep coverage with aggressive ventilation from 16 vents coupled with deep internal channeling, it helps keep things cool even when the riding gets rowdy. And with the comfort and secure feel of the Roc Loc 5 fit system with Integrated MIPS brain protection, plus a moto-style adjustable screw-in visor and full lower Hardbody durability, you get a helmet that's capably equipped for fun and adventure.

- Integrated MIPS (Multi-Directional Impact Protection System)—allows you to customize fit/feel for great stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact

- In-Mold polycarbonate shell and EPS liner
- Polycarbonate Hardbody lower shell

- Adjustable moto-style screw-in visor

Interior/liner type:
- Coolfit anti-microbial padding

Ventilation type:
- 16 Wind Tunnel Vents with internal channeling

Fit system:
- Roc Loc 5

Impact liner type:
- EPS foam liner

Product weight:
- 340g (size Medium)

Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older


Adult Super Fit SizeCircumference
Small 51 - 55 cm
Medium 55 - 59 cm
Large 59 - 63 cm
X-Large 61 - 65 cm

Note: We recommend you try helmets on before buying. Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

Part Numbers

Option UPC MPN Store SKU
Matte Black Fade / Small 768686377297 7129434 GIR25795025S
Matte Black Fade / Medium 768686377303 7129435 GIR25293020M
Matte Black Fade / Large 768686377310 7129436 GIR25559104L
Matte Black Fade / X-Large 768686377327 7129437 GIR26648461L
Matte Chalk / Small 768686377334 7129446 GIR23557806S
Matte Chalk / Medium 768686377341 7129447 GIR235866M
Matte Chalk / Large 768686377358 7129448 GIR23218158L
Matte Harbor Blue / Small 768686476839 7140221 SOU21814974S
Matte Harbor Blue / Medium 768686476846 7140222 SOU21444721M
Matte Harbor Blue / Large 768686476853 7140223 SOU21972217L
Matte Metallic Black/Ano Lime / Small 768686476778 7140213 SOU20937821S
Matte Metallic Black/Ano Lime / Medium 768686476785 7140214 SOU20479492M
Matte Metallic Black/Ano Lime / Large 768686476792 7140215 SOU20983641L
Matte Portaro Grey / Small 768686377365 7129455 GIR26585032S
Matte Portaro Grey / Medium 768686377372 7129456 GIR2694939M
Matte Portaro Grey / Large 768686377389 7129457 GIR26320562L
Matte Trail Green / Small 768686476808 7140217 SOU22968499S
Matte Trail Green / Medium 768686476815 7140218 SOU22730997M
Matte Trail Green / Large 768686476822 7140219 SOU22860674L