100% waterproof main compartment. Our bestselling small handlebar bag is the most functional and easy to use bike bar bag out there. Combining RF welded seams and traditional sewing enables us to make a completely waterproof and practical zippered bag. No roll-top closure, just an easy to open zippered main compartment that’s always dry. Features: shoulder strap, adjustable aluminum mounting bracket (no plastic parts to break), removable waterproof liner and waterproof map case. Will fit bars of 22.2 up to 31.8mm. Additional handlebar mounting brackets available to swap bar bags from bike to bike. You can protect the front and side pockets from the elements with an Arkel raincover.. It’s bright yellow color increases visibility and keeps grime off your bag.