Features Easy-to-fill OMEGA opening to reservior Hydroguard anti-microbial technology eliminates up to 99.99% of bacteria and fungus Big Bite valve offers easy drinking PureFlow delivery tube has a taste-free liner to keep water tasting fresh Liquid Capacity: 70 oz Expandable, organized storage Easy-to-use retention system holds skis diagonally or a board vertically Enhanced reservoir access through the zippered back panel Padded CD/MP# pocket with headphone port Dimensions: 13 in x 11 in x 2 in Cargo Capacity: (closed) 732 cu in; (open) 1184 cu in Weight: (empty) 2.22 lbs; (filled) 6.46 lbs