Features:Compatible with plumbing conversion device, you can drink water without having to take the bottle out of your backpack.The drinking water pipe adopts food grade TPU polyether,and the inner tube adopts food grade PE material.In line with the tap ergonomic, pulling 90 degrees to nibble it to suck in water.Suitable for trekking, fishing, climbing, hiking, hunting, rafting, canoeing, boating, kayaking, etc. Y6838