Tancendes Bike Bag Outdoor Multi-function Nylon Portable Bicycle Rear Seat Bag Pannier Trunk Bag with Rainproof Cover High quality waterproof nylon material durable and tough and an extra rainproof cover Big enough capacity for long riding trip Multiplane design help you store different gadgets and a special designed water bottle package Two built-in bags hidden in the side packages Preset a position for lock a rear flashlight