Military Tactical Backpack with 2.5 Liter Hydration Rucksacks for Camping Hiking Trekking Main Compartment: 48 x 35 x 18cm/ 19 x 14 x 7in (Height x Width x Depth) The inside pouches are made by waterproof material, wearable and durable Perfect to use when hiking, climbing, riding and other outdoor actives Can detachable molle pouches attached on front and two sides Material: 900D Oxford