An additional 2 liters of gear storage boosts the Origin 5.0 pack into the relm of an ultralight half-day pack, with enough capacity for activities in the 2-4 hour range. An additional stretch woven panel sleeve on back allows quick on the go stashing of extra layers. Weatherproof construction for superior gear protection in any weather with 200D rip stop nylon with 10,000mm urethane laminiate and welded, water resistant zippers and heat-taping on all critical seams. Integrated hydration for fast, easy reseroir access with multiple tube routing options and dedicated reservoir pockets maintain pack capacity. Fit and functionable with streamlined, activity based features and refined contoured fit. BioCurve ventilated back panels, stretch woven comfort on touch points and multiple pockets provide on the go access and organization. Gear capacity: 3.0L, Back length: 45.7cm/18in, Pack weight: 474g/1lb 1oz (w/o reservoir), Reservoir wight: 157g/5.5oz.