The B-RAD TekLite Roll-Top Bag is a premium, lightweight and flexible pannier that protects your bike essentials from the elements. It has the same profile as the original B-RAD Roll-Top Bag, but uses the new TekLite material, which is made of layered, strong, durable and lightweight fibres. The panniers are big enough to hold a packed windbreaker or food for a day in the saddle, but sleek enough not to get in the way when riding.a roll-up opening allows for quick access, while a Velcro strap allows for easy removal and repositioning. It can be mounted under the saddle, to the frame, put in a bottle basket or mounted on any B-RAD base. Capacity 1 l Included: bag and silicone strap for mounting on the saddle or directly on the frame tube, B-RAD Weight 58 mounting plate.5g Bag and Strap | 18g Mount Bag Dimensions 4" wide x 3" tall x 5-8" long (when rolled vs. unrolled) Strap Dimensions 2" wide x 16" long Capacity 1 liter Materials Ultra-high-molecular-weight polyethylene (UHMWPE), sealed seams, Duraflex buckle, 2" wide silicone-backed strap Included Mounting hardware Tools Needed: T25 Torx Torque: 3-4 Nm