Tanluhu 4L Waist Pack with Shoulder Straps and Water Bottle Holders for Climbing, Hiking, Camping, Running, Travelling, etc.. This is a hydration waist pack for cycling, trail running, hiking, climbing, camping, etc. Here are more details you may want to know about it: * Capacity: 4L, seperate storage compartments for your phones, keys, snacks, purse, water bottles, etc * Padded and breathable mesh back panel offer cushioned comfort, while also promoting air circulation along your back * Portable hand carry design, large bearing capacity, ribbon durability can be at ease use. * Shoulder straps can relieve the load stress on your waist or hip, making your journey more pleasant and more comfortable. * The main material is nylon fabric, water-resistant and durable * Only the waist pack is included, NO BOTTLES.. Tanluhu 4L Waist Pack with Shoulder Straps and Water Bottle Holders for Climbing, Hiking, Camping, Running, Travelling, etc.