Inside leather knee panels offer durability when on the bike

technologically advanced materials provide maximum durability

or city streets

Functionally

Replacement Visor for SE5 Core Black

A3 Helmet W/Mips Uno Red Size:XS/S Inside leather knee panels offerA3 Helmet W MIPS So comfortable you won't ever want to take it off. The A3 mountain bike helmet is a new standard in premium mountain bike helmets with luxurious comfort, patent pending innovations in safety, ventilation that will you keep you cool on the longest climbs with comfort and coverage to protect on the sketchiest of descents. Highest possible score (5 STAR) from Virginia Tech helmet safety lab so you can feel confident in all conditions.