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Giro Synthe MIPS II Helmet

Giro Synthe MIPS II Helmet
  • Color: Matte Black
  • Color: Matte Black Underground
  • Color: Matte Black/Bright Red
  • Color: Matte Black/Highlight Yellow
  • Color: Matte Portaro Grey/White/Red
  • Color: Matte Warm Black
  • Color: Matte Harbor Blue
  • Color: Matte White/Silver
Color: Matte Black
Size: Select size
Please select options Unavailable


The Synthe II MIPS is an icon of road helmet design, combining the performance advantages of a compact profile with great cooling power and luxurious comfort for road and gravel riders.

The Synthe MIPS Helmet offers good looks in a slim design while offering more coverage on the back of the helmet for a little extra assurance. The compact form of the Synthe MIPS slips through the air with ease across multiple yaw and head angles and offers impressive cooling power. Key features include the Roc Loc Air fit system with 2-way fit tuning and Aero Mesh Panels with a dedicated port for securely docking sunglasses as you ride. The Synthe MIPS also has the Multi-Directional Impact Protection System, which we believe can redirect energy and provide more protection in certain impacts.

- MIPS-equipped—to redirect impact energy, providing more protection in certain impacts:
- Construction
- In Mold construction
- Thermoformed Sl roll cage reinforcement

Shell type:
- Polycarbonate shell
- Number of vents: 26

Ventilation type:
- Wind Tunnel Vents with internal channeling

Fit System:
- Roc Loc 5 Air

Impact liner type:

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 / Small 768686381645 7130695 GIR56707551M
Matte Black / Medium 768686381652 7130696 GIR56288385M
Matte Black / Large 768686381669 7130697 GIR56379659M
Matte Black/Bright Red / Small 768686381799 7130767 GIR65351884M
Matte Black Underground / Small 768686476440 7140166 GIR67806029M
Matte Black/Bright Red / Medium 768686381805 7130768 GIR65744826M
Matte Black Underground / Medium 768686476457 7140167 GIR67810827M
Matte Black/Bright Red / Large 768686381812 7130769 GIR65991579M
Matte Black Underground / Large 768686476464 7140168 GIR67431565M
Matte Black/Highlight Yellow / Small 768686381676 7130704 GIR71958409M
Matte Black/Highlight Yellow / Medium 768686381683 7130705 GIR71464590M
Matte Black/Highlight Yellow / Large 768686381690 7130706 GIR71908366M
Matte Portaro Grey/White/Red / Small 768686381706 7130722 GIR70353321M
Matte Portaro Grey/White/Red / Medium 768686381713 7130723 GIR70113044M
Matte Portaro Grey/White/Red / Large 768686381720 7130724 GIR70644917M
Matte Warm Black / Small 768686381737 7130731 GIR60521720M
Matte Harbor Blue / Small 768686476471 7140169 GIR61899994M
Matte Warm Black / Medium 768686381744 7130732 GIR60255562M
Matte Harbor Blue / Medium 768686476488 7140170 GIR61888527M
Matte Warm Black / Large 768686381751 7130733 GIR60122666M
Matte Harbor Blue / Large 768686476495 7140171 GIR61888735M
Matte White/Silver / Small 768686381768 7130740 GIR62875235M
Matte White/Silver / Medium 768686381775 7130741 GIR62965859M
Matte White/Silver / Large 768686381782 7130742 GIR62105485M