FEATURES; QMT-Source Quick Mate Technology hose fitting offers push button convenience IRR tube cover 2 drinking valves: push/pull sport valve with integrated twist shut off; Storm "no bite" Hydration Valve with integrated twist shut off delivers 25% higher flow than bite designs Dirt Shield valve cover, no more dragging in the dirt! Keeps valve free of dirt and protected during transport Kangaroo fits standard issue canteen pouches plus custom pouches from many manufacturers. Slosh Free Free-standing when full, folds flat when empty