All new jersey chassis with full venting from inseam of arm all the way to the waist! went away from the shoulder cuff ( vest) design. now has a all new shoulder design. The 4 way stretch fabric has the durability necessary for motocross racing while allowing the agile movement needed on the track. The Aektiv Pure Moto Jersey is fully vented to keep the body cool during your ride. This popular motocross jersey is tailored with an athletic fit with moisture wicking fabric so you can look cool and stay dry.