FLY RACING EVOLUTION DST SE SPARK JERSEY BLACK/SILVERLaser cut perforations for advanced ventilation Full mesh back and integrated mesh in key areas Zero cuff arm openings provide unrestrictive mobility Multi directional Lycra neck and shoulder panels Low profile multi panel construction for maximum performance and a comfortable fit Seamless armpit construction, with a single continuous stretch mesh panel from the sides to cuffs which helps prevents underarm irritation Silicone printed tail keeps jersey