The 25 Liter Noatak Wet/Drybag from Aquapac is a large touring bag that can hold a ton of clothes for a bike or camping trip. It's named after the Noatak river of northern Alaska - a rugged piece of territory that calls for a rugged bag. It's coated with a thermoplastic polyurethane for additional protection against rain and mud. For additional durability, it's made with a ripstop nylon that will prevent a slight rip from expanding along the entire fabric. The two shoulder straps make the bag even more viable as either a backpack, shoulder or grab bag. Aquapac even gives you a lashtab for when you're on a boat and need to secure the pack down to the deck. It seals using Aquapac's roll-down sealing system that helps prevent water from seeping in if you are in a canoe or kayaking. This is a lightweight bag that is good for either an extended or day trip.