The Ortlieb Messenger Bag is one of our best-sellers. It not only offer plenty of space to stash your stuff but its fully waterproof, even on the base, that means there is no way you'll arrive at your destination and have to pick out soggy contents of your bag. Ortlieb Messenger bags use IP 64 high grade material that is ultra robust and difficult to tear, on the back you'll find wide space cushioned padding that allows air to circulate around your back. The wide shoulder straps have reflective detailing for additional visibility. A roll top closure means you can carry up to 39 litre payload.