This snazzy little bag is sublimely simple.  It's one pocket made of PVC-coated polyester, ie completely waterproof.   It's accessible while riding for snacks and such, and comes with a strap to carry off the bike.  Makes a great camera bag with some extra padding (lots of us at Trophy also like phtography)!  It's also a great complement to any touring set-up, giving you a waterproof day-bag to stash electronics, wallets, passports, and other valuables.

The mounting hardware works with all handlebar sizes and makes it easy to remove and mount the bag.  Those crazy Germans even came up with a lock for extra peace of mind.  The minimal design and ease of use appeals to a variety of riders, from randonneurs and tourers to commuters and campers.