Hydration Capacity: 100 oz (3 L). Includes the new 100 oz (3 L) Antidote reservoir with Quick Link System, 1/4 turn - easy open/close cap, lightweight fillport, dryer arms, center baffling and low-profile design, patented Big Bite Valve, HydroGuard technology, PureFlow tube, easy-to-clean wide-mouth opening. Pack Weight: 5.3 oz (150 g). Dimensions: 18 x 8.5 x 4 in (45 x 22 x 10 cm). Fabric Specs: 70D Diamond Clarus & 420 Nylon with DWR & 1000 mm PU coating.