Ultra-lightweight 100% polyester Aero-Tec™ fabric provides both weather protection and zero noise, without the bulk; 100% polyester; Dry-Excel™ Maze Mesh inserts at shoulders;Sleeves, collar and shoulder inserts have the Tech Print pattern detail; Quarter-zipped neckline; Spandex bound cuffs; Front pouch pocket; Silicone welded and laser cut sleeve pocket and media port;