VBIGER Hydration Pack 3L Bladder Water Bag Great Hunting Climbing Running Hiking Rugged 800D Oxford fabric and nylon lining, resistant to tears and abrasion. Durable plastic insert buckles with ultra-high hardness. Slender and portable design with middle handle strap and adjustable webbing chest and shoulder straps. Hands-free hydration hose with bite valve, gently biting the valve to open up the flow of water. With a pouch on the back, easy to carry your phone, keys and some small tools.