SUPOW(TM) Bicycle Quick Release Waterproof Durable Tail Mountain Bike Road Bike Seat Bag/Kit Straps Bag/Mountain Road Car Cushion Package Kit/Bind Saddle Bag Multi-reflective surface design. Quickly removed the bandage type design. Zipper waterproof design. Material: High-density 600D waterproof fabric. Size: 20 * 8 * 6cm