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Cerro Torre's mid-size daypack is ergonomically sound and extremely durable. Use it while riding bike or ski trails or hustling across campus. Roll Top entry allows full access to the main compartment by releasing the two side buckles and unrolling the top. Ergonomic shoulder straps and internal frame support the load in comfortable fashion. New A-slanted hipbelt helps transfer heavy loads onto your hips. Internal compartment holds hydration reservoir (sold separately) for hands-free drinking on the trail. Highly water-resistant zippers increase protection from the elements. Two side mesh pockets are great for smaller items such as water bottles, energy bars or cell phone. Flush accessory attachment panel provides extra storage capacity. Made from durable 420-denier nylon and 1000-denier Kodra® nylon on the bottom to protect from inevitable bumps and bruises. Detachable rain fly stores in its own compartment. Overstock.