The 50 and 80-liter version of the Beak Duffel is a versatile bag for both quick and longer trips. It is durable and protects against all weather. The nylon fabric with TPU coating and welded joints makes this bag completely air and waterproof. The zipper is also specially made to keep the bag waterproof. Detachable, adjustable shoulder straps allow it to be carried like a backpack and handles on both sides also serve as attachment points.