M-Wave Amsterdam Bottle saddlebag This saddlebag from M-Wave is easy to attach under your saddle, using the Velcro. You can easily close it with the zipper and the drawstring at the front. The Amsterdam Bottle is equipped with a practical holder for a water bottle. Specifications: Color: black Material: 80% polyester, 20% PVC Closure type: zipper, drawstring Fastening: Velcro Capacity: 1 liter Reflection: yes Waterproof: yes, splash-proof