The ACT Zero series was built with lighter, faster trips in mind! These packs allow the experienced backpacker or mountaineer to carry necessities without added pack weight. . . . . . . SL Women's fit. . Aircontact back system. . Vari Quick System for easy adjustment to any back length. . X-Frame construction. . Valuables pocket. . Wet pocket. . SOS label. . Lightweight. . Adjustable lid. . Side pocket. . Padded hip belt. . Sternum strap. . Hydration System 3.0 L compatible. . Weight: 3 lbs. 5 oz.. . Volume: 2750 + 920 cu. in. (45 + 15 L). . Size: 29 x 12 x 9.4 in.. .