Black Diamond 65 liter multi-day backpack * Product Material: 400d polyester twill + 420d nylon twill * Product Weight: 4.69 lbs. * Full featured backpacking pack for long days on the trail * Patent-pending ergoACTIV suspension with OpenAir backpanel * Top-loading with floating top pocket, plus front zippered access * Waterproof taping on top and bottom * Compartment divider, side and hipbelt pockets, front and internal organizer pockets * Retractable trekking pole/ice axe loop, sleeping bag straps * Hydration compatible