flexible, do-it-all storage option, the Roll-Up Bag keeps your gear secure and protected from the elements. It's large enough to hold a jacket or food for a long ride, yet streamlined enough to stay out of the way of your legs while riding. The velcro strap allows you to easily remove the bag once you reach your destination. 1.1L capacity for storage of phones, wallets, food, extra layers, or other gear. Seam-sealed material and roll-up design protect contents from water and road grit. Silicone-backed strap keeps bag securely in place. Durable, abrasion-resistant 420D ripstop nylon construction with PVC backing. Multiple mounting options: under the saddle or on any B-RAD base (sold separately)