The front half zip offers easy access and ventilation and the zipper cover prevents rubbing and irritation on your neck and chin running in this jersey is a breeze its made from lightweight fabric so youll have nothing weighing you down the fabric is also enriched with asics motiondry technology so the jersey works to wick sweat away from your skin keeping you cool and dry the long sleeve 12 zip jersey features special flat lock seams to prevent chafing in targeted areas and ke