The Susan Bijl The New Bum Bag Dark Patrol & Joy Small is a waterproof, compact crossbody bag made of recycled ripstop nylon, designed for everyday use and equipped with an internal pocket for your essentials. The rectangular design offers a surprising amount of space, while the striking color design in Dark Patrol and Joy gives a modern look. The bag is available in two sizes and can easily be attached to your bike or stroller with special velcro (sold separately).