30 L Waterproof Backpack - Compression Backpack for Canoeing, Camping, Travelling, Kayaking, Boating, Hiking 100% WATERPROOF: The backpack is 100% waterproof and is one of a kind, because of its handy purge valve. GREAT FOR ADVENTURES: This is the perfect waterproof backpack for any active person who wants to bring their belongings along with them during any adventure. INFLATABLE: With the purge valve you can inflate or compress the backpack, and even use it as a draining tool if using the backpack as a shower or cooler. LARGE COMPARTMENT: The backpack includes a fully waterproof main compartment capable of holding 30 Liters, Roll-Top Closure, Buckled Lid. MONEY-BACK GUARANTEE: The manufacturer, NEESIX offers a 100% money-back guarantee. You have nothing to lose, if you are not completely satisfied with the backpack, you can return it for a free replacement or a full refund. Click Add to Cart to buy now.