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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 Trim Blue
  • Color: Matte Trim Red
  • Color: Matte Warm Black
  • Color: Matte Trail Green
$120.00 - $130.00
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 GIR22276036M
Matte Black Fade / Medium 768686377303 7129435 GRS23521973D
Matte Black Fade / Large 768686377310 7129436 GIR24870851G
Matte Black Fade / X-Large 768686377327 7129437 GRS28161670S
Matte Chalk / Medium 768686377341 7129447 GIR21575657D
Matte Chalk / Large 768686377358 7129448 GIR24145570G
Matte Portaro Grey / Medium 768686377372 7129456 GRS23196235D
Matte Portaro Grey / Large 768686377389 7129457 GIR20921389G
Matte Harbor Blue / Medium 768686476846 7140222 GRS249333912
Matte Trim Blue / Medium 768686411878 7133703 GRS26249095S
Matte Harbor Blue / Large 768686476853 7140223 GRS243482852
Matte Trim Blue / Large 768686411885 7133704 GRS26632706S
Matte Metallic Black/Ano Lime / Medium 768686476785 7140214 GRS26142883S
Matte Metallic Black/Ano Lime / Large 768686476792 7140215 GRS26396934S
Matte Warm Black / Small 768686377426 7129473 SOU29458109S
Matte Warm Black / Medium 768686377433 7129474 GIR21623938D
Matte Warm Black / Large 768686377440 7129475 GIR21124281G
Matte Trail Green / Medium 768686476815 7140218 GRS24750412
Matte Trail Green / Large 768686476822 7140219 GRS249078352