Adventure Out This deluxe hydration day pack has everything you need to make it up the mountain. A 2L water reservoir is included to keep you hydrated throughout the day, and the pack's multiple internal and external storage compartments keep all your gear organized. Not using all the storage space? Cinch the pack down using the side compression straps to provide a more stable load carry and hit the trail in comfort. Features Includes 2L hydration reservoir Top hydration port for easy access to your water Large main compartment and organizer compartment Side compression straps Front stash pocket and side stretch pockets Reflective safety accents Sternum strap for added stability and comfort Materials 600D 90T Polyester Tech Specs Capacity: 13L / 793 in3 Weight: 1 lb 7 oz / .6 kg Dimensions (L x W x D): 17.72" x 9.84" x 5.51" / 45 x 25 x 14 cm