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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 SOU21626061S
Matte Black Fade / Medium 768686377303 7129435 SOU2132529M
Matte Black Fade / Large 768686377310 7129436 SOU21479575L
Matte Black Fade / X-Large 768686377327 7129437 SOU22607471L
Matte Chalk / Small 768686377334 7129446 SOU19504155S
Matte Chalk / Medium 768686377341 7129447 SOU19931709M
Matte Chalk / Large 768686377358 7129448 SOU19844470L
Matte Harbor Blue / Small 768686476839 7140221 SOU21569729S
Matte Harbor Blue / Medium 768686476846 7140222 SOU21237925M
Matte Harbor Blue / Large 768686476853 7140223 SOU21309349L
Matte Metallic Black/Ano Lime / Small 768686476778 7140213 SOU20946912S
Matte Metallic Black/Ano Lime / Medium 768686476785 7140214 SOU20322694M
Matte Metallic Black/Ano Lime / Large 768686476792 7140215 SOU20981266L
Matte Portaro Grey / Small 768686377365 7129455 SOU22454744S
Matte Portaro Grey / Medium 768686377372 7129456 SOU22364942M
Matte Portaro Grey / Large 768686377389 7129457 SOU2276829L
Matte Trail Green / Small 768686476808 7140217 SOU22316527S
Matte Trail Green / Medium 768686476815 7140218 SOU22652057M
Matte Trail Green / Large 768686476822 7140219 SOU22668708L