Giro Men’s Grid MIPS Helmet

Giro Adult Snow Helmets

HELMET SIZE	Small	Medium	Large	X-Large
Head Circumference (CMs)	52 – 55.5cm	55.5 – 59cm	59 – 62.5cm	62.5 – 65cm

Giro Adult Universal Fit Bike Helmets

HELMET SIZE	Women Universal	Adult Unisex Universal	X-Large Universal
Head Circumference (CMs)	50 – 57cm	54 – 61cm	58 – 65cm

Giro Adult Super Fit Bike Helmets

HELMET SIZE	Small	Medium	Large	X-Large
Head Circumference (CMs)	51 – 55cm	55 – 59cm	59 – 63cm	63 – 65cm

Giro Adult Super Fit Full Face Bike Helmets

HELMET SIZE	Small	Medium	Large	X-Large
Head Circumference (CMs)	51 – 53cm	51 – 55cm	55 – 59cm	59 – 63cm

HOW to MEASURE
HEAD CIRCUMFERENCE: Wrap a flexible measuring tape or string around your head, keeping it level from front to back. Note the measurement and reference the Size Guides above.

NOTE: Giro recommends you 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.