Deuter Traveler 55+10 SL Backpack - Women's - 3358cu in 5" high 15" wide Weight: 6 lb 9 oz Volume: 3558 cu in, (expanded) 4168 cu in Hydration Compatible: (daypack) yes Reservoir Included: no Dimensions: (with daypack) 26 x 14 x 15 in, (without daypack) 26 x 14 x 10 in