An award-winning super lightweight dry bag made of 30D Ultra-Sil fabric featuring Cordura yarns for durability. The fabric is semi-translucent to you can kinda see what's inside. The oval base keeps the bag from rolling away on you and makes it easier to fit into a pack. This isn't the dry bag you want rolling around on the bottom of a sandy canoe; it is meant for weight concious waterproofing of gear you pack inside a more durable bag.