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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 GIR56128950M
Matte Black / Medium 768686381652 7130696 GIR56543078M
Matte Black / Large 768686381669 7130697 GIR56861913M
Matte Black Underground / Small 768686476440 7140166 GIR67935490M
Matte Black Underground / Medium 768686476457 7140167 GIR67125289M
Matte Black Underground / Large 768686476464 7140168 GIR67438487M
Matte Black/Bright Red / Small 768686381799 7130767 GIR65662479M
Matte Black/Bright Red / Medium 768686381805 7130768 GIR65315095M
Matte Black/Bright Red / Large 768686381812 7130769 GIR65472835M
Matte Harbor Blue / Small 768686476471 7140169 GIR61893036M
Matte Harbor Blue / Medium 768686476488 7140170 GIR61819776M
Matte Harbor Blue / Large 768686476495 7140171 GIR61762067M
Matte White/Silver / Small 768686381768 7130740 GIR62722340M
Matte White/Silver / Medium 768686381775 7130741 GIR62764731M
Matte White/Silver / Large 768686381782 7130742 GIR62830911M