21+ Giro Helmet Size Chart Bike Pics. I read the sizing chart, and got a size large (my hat size is a 7) maybe getting a smaller size would help combat these issues. I would advise trying on this helmet at your local bike shop and see if it fits your head.
I've been using a size l giro atmos for years and it fits fine but i'm sure we'd all like to get the smallest helmet possible.
5 best recreational helmet brands. But i have already bought and used the helmet, so i cannot return or exchange it. To determine the correct helmet size, wrap a measuring tape around your head, keeping the tape just above the ears and level front to back. Buy giro cycling helmets and get the best deals at the lowest prices on ebay!