The core goal of RHINOWALK is guide users to focus the riding itself, without any eternal conditions influence, use the simple design to solve the complex problems. Rhinowalk Multifunction 24L Bike Pannier Bag Waterproof Bicycle Rear Seat Bag Upgraded design, multipe ways of use. Rhinowalk strives on " Solve complex problems with simple design". Super perfect bag structure. Accord with human body engineering. Large capacity to provide ample storage space. Suitable for bicycle adventure, shopping, business trip, etc. Help you enjoy sports with great comfort and convenience. Material: polyester Unfolded Size: 27*15*57cm Folded Size: 27*15*42cm Weight: 1050g Package includes: 1 * Bike Pannier Bag, 1 * Rain Cover Through the back zipper, it can be switched bo backpack and bicycle pannier bag. Open the zipper, hide and shoulder straps in the compartment, and install it on the pannier. CLose the zipper and use it as a backpack. There are reflective strip and taillight strap on the side, it is safe to ride at night. S shaped strap design could help spread pressure to protect your nect and spine. It's water resistant, only use the rain cover can be completely waterproof. FOUR FUNCTIONS BIKE PANNIER MOTOR PANNIER LUGGAGE BAG BACKPACK