If you feel like you've got too much on your head when you're riding, try a lighter helmet. Giro's Prolight helmet is a race-level helmet that presents the new standard for lightweight and streamlined design. It has a superlight InMold shell with 25 aerodynamic vents to channel maximum airflow over your head. It also sports the Roc Loc SL fit system with Super Fit sizing, so you can dial in a fit that is so custom, you'll barely feel the helmet at all.
In-Mold construction provides strength, integrity and is so lightweight, you'll have to remind yourself that you've got a helmet on at all
25 Wind Tunnel vents with fully optimized internal channels thrust cool, fresh air over and around your head while forcing heat and stale air out