Giant Shadow DX Seat Bag's feature water resistant ProTextura™ fabric construction with a water-proof zip, in a slimmer design that fits neatly under performance road bike saddles. A simple anti-slip hook and loop Velcro® strap fitting allows easy removal and fitting and the reflective strip offers improved low light visibility with a tail light hanger for adding your own light. Features ProTextura™ water resistant nylon and waterproof zipper provide extra protection to keep gear dry Industrial-strength hook-and-loop straps offer superior holding power to securely attach to seatposts Reflective strip and taillight hanger provides optimal visibility and safety Internal mesh pocket for organisation of small essentials