Giro savant helmet authentic style and performance with unmatched value the savant is an amazing fit for riders who enjoy great routes as much as a swift pace the slim shape combines impressive ventilation thanks to 25 wind tunnel vents and the comfortable convenience of the adjustable roc loc 5 fit and stability system and with the light weight and durability of in mold construction it wont weigh you down features in mold eps liner polycarbonate shell roc loc 5 25 vents in mold cons