Ultimate Performance UP Unisex's Aire Flex 18 Running Hydration Race Pack, Black/Blue, OSFA

2 x 500ml flexi flask with straws included twin front secure pockets for valuables & twin front stash pockets - ideal for bars, gels or empty packets 100% polyamide hand washable in cool water fastening: zipper aire flex 18 up6391 ultra-light air mesh shoulder straps adjustable chest strap with height slider 18 litres of storage for the longest races; Fabric type: 100% Polyamid; Strap type: Shoulder Strap