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Giro Synthe MIPS II Helmet

Giro Synthe MIPS II Helmet
  • Color: Matte Black
  • Color: Matte Black/Bright Red
  • Color: Matte Black Underground
  • Color: Matte Black/Highlight Yellow
  • Color: Matte Portaro Grey/White/Red
  • Color: Matte Harbor Blue
  • Color: Matte Warm Black
  • 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 GRS25510018S
Matte Black / Medium 768686381652 7130696 GRS25444940S
Matte Black / Large 768686381669 7130697 GRS25995378S
Matte Black/Bright Red / Small 768686381799 7130767 GRS30707576S
Matte Black Underground / Small 768686476440 7140166 GRS30901879S
Matte Black/Bright Red / Medium 768686381805 7130768 GRS30938807S
Matte Black Underground / Medium 768686476457 7140167 GRS30239232S
Matte Black/Bright Red / Large 768686381812 7130769 GRS30860471S
Matte Black Underground / Large 768686476464 7140168 GRS30923690S
Matte Black/Highlight Yellow / Small 768686381676 7130704 GRS30324995S
Matte Black/Highlight Yellow / Medium 768686381683 7130705 GRS30121891S
Matte Black/Highlight Yellow / Large 768686381690 7130706 GRS30445852S
Matte Portaro Grey/White/Red / Small 768686381706 7130722 GRS29495123S
Matte Portaro Grey/White/Red / Medium 768686381713 7130723 GRS29827573S
Matte Portaro Grey/White/Red / Large 768686381720 7130724 GRS29648516S
Matte Warm Black / Small 768686381737 7130731 GRS29930571S
Matte Harbor Blue / Small 768686476471 7140169 GRS28209334S
Matte Warm Black / Medium 768686381744 7130732 GRS29783628S
Matte Harbor Blue / Medium 768686476488 7140170 GRS28456098S
Matte Warm Black / Large 768686381751 7130733 GRS29594829S
Matte Harbor Blue / Large 768686476495 7140171 GRS28184868S
Matte White/Silver / Small 768686381768 7130740 GRS28594868S
Matte White/Silver / Medium 768686381775 7130741 GRS28219781S
Matte White/Silver / Large 768686381782 7130742 GRS28824600S