High Quality Bicycle Rear Seat Bag: Made of 900D waterproof coating fabric+pu, which ensures the quality and elegant appearance. Designed with waterproofing zipper and easy to pull. Large Capacity:this bike bag pannier bags is 11 to 26 liters,In addition to an 11-liter bag, there are two additional side bags, which can perfectly solve your troubles with too much luggage sometimes. Bike Trunk Bag with Multiple Functions: Fashion design and convenient to carry. Velcro strap is easy to installation and release. Commes with extra adjustable shoulder strap. You can also use it as a handbag/shoulder bag. Easy to Install and Release: 3 fastener strap for easy and quick installation on all types of bicycles with a rear seat, such as mountain bike, road bike, etc. Reliable after-sales:This bicycle bag pannier bags enjoy a 60-day after-sales guarantee. If you are not satisfied with the purchased goods or have quality problems, you can return or replace them.