Bolstering core warmth without adding bulk is the mission of the day for the Zerodark(TM) vest. The shell is comprised of lightweight nylon with water-resistant coating. It also has a 100-gram ThermoliteA(R) insulation package, chest-rig style cargo pockets, and our quick-access Gunvents(TM). Attackposture(TM) fit Fitelite(TM) nylon chassis Dupont(TM) TeflonA(R) water-resistant coating 100-gram ThermoliteA(R) core insulation Gunvent(TM) sidearm access zippers Interior access pockets Chest-rig style cargo pockets U.S. veteran designed & developed 1 year workmanship & materials warranty