Features<br />1.Constructed by waterproof 600D high density Nylon material.<br />2.Two layers cargo design・ one for hydration bladder・ and the other for extra carrying purpose.<br />3.Adjustable shoulder strap and chest belt・ suitable for heavy carrying.<br />4.Equipped with a tube with a bite valve to drink・ so you don't need to hold it to drink.<br />5.A switch on/off bite valve・ convenient for control the flow of water.<br />6.Perfect to use when hiking・ climbing・ riding and other outdoor actives.<br /><br />Bladder Capacity:3L<br />Size: 45x21cm<br />Colors: <br />Black / Green / TAN / ACU / CP Camouflage / Digital Jungle / Jungle Camouflage <br /><br />Package include・<br />1 x Water bag with bladder<br /><br />This Hydration Water Backpack is useful in desert・ forest・ rock-climbing・ riding and when you are inconvenient to <br />drink with your hands. It uses a tube with a bite valve to drink.