Cactus Jack Rambler Backpack18 X 8 X 12in Black. The Rambler Backpack has multiple pockets and has extra padding for comfort on long hikes and a water bottle holder in the front to keep you hydrated. Specifications for Cactus Jack Rambler Backpack: Manufacturer: Cactus Jack Gender: Unisex Pack Application: Travel Pack Type: Backpack Hydration Compatible: No Fabric/Material: 600D Nylon Body Material: 600D Nylon Age Group: Adults Length: 12 in Width: 8 in Height: 18 in Pockets: Yes Pack Loading: Top Application: Travel Features of Cactus Jack Rambler Backpack Water bottle carrier; 4 accessory pockets; 2 side mesh pockets; Padded shoulder straps; Padded back and waist pad; Removable waist belt; MOLLE attachments to attach extra pouches; Top lid zippered compartment; Package Contents: Cactus Jack Rambler Backpack Cactus Jack WCJAMB11B: Rambler Backpack18 X 8 X 12in Black