Altitude Sports
Altitude Sports

sizing_louis-garneau_LGN-1405250

Sizing chart helmet Quartz II 

Size Hat Size (Inch) Inch CM
S 6.5 - 7 20.5 - 22 52 - 56
M 7 - 7.375 22 - 23.25 56 - 59
L 7.375 - 7.75 23.25 - 24.5 59 - 62
XL 7.75 - 8 24.5 - 25.75 62 - 65