Polyester mesh material for maximum ventilation. Mandarin collar. Straps on arms lock body armor into place. Inner zipper for attaching racing pants. Adjustable side tabs for that perfect fit. Built in kidney padding. 2 outside and one inside pocket. 3M reflective logos on arms for safety. Removable CE Certified hard armor in elbows, shoulder and back for maximum protection. Heavy snaps and YKK zippers.