Nathan HPL #020 BlackLight 2L Race Vest Black reflective fabric is deceivingly super reflective and provides incredible visibility Patented 3 way propulsion harness stabilizes side to side and up down movement Wall mesh shoulder straps are highly breathable One front bottle pocket fits a 22 oz. Tru Flex bottle and one front zip smart phone compatible pocket Weight is 14.6 oz. and storage capacity is 269 cu in with bladder