CAMTOA 3L Water Bag Hydration Pack Bladder Hydration System Water Bag Backpack For Climbing Hiking Survival Event (Bladder Included) Rugged heavy-duty nylon construction, resistant to tears and abrasion Fully removable 3 liter (100 ounce) water bladder The back pack comes with a hydration bladder. This Hydration Water Backpack is useful in desert, forest, rock-climbing, riding and when you are inconvenient to drink with your hands. 90 day money back guarantee. We'll give you your money within three months of receiving the product back if you are not satisfied with the product CAMTOA