The Ortlieb Velocity's geometric street-art designs capture a spirit of independence. Added in is the bag's uncompromising functionality: the robust polyester tarpaulin material with roll-Velcro closure ensures absolute and comprehensive waterproof protection. With a 24-liter payload, the main compartment offers enough space for everything you need for work, school, and play. And carrying comfort is guaranteed even after a long day thanks to the smart foam padding on the back and the ergonomic straps. You can also attach a rear light or a bike helmet to the clip-on strip on the back.