[High Quality Materials]: The waterproof bicycle rear frame bag is made of high density nylon waterproof fabric, very strong, has high abrasion resistance, tear resistance and durability. rear frame bag Easy to clean only with a soft cloth. The interior of the bag is made of waterproof PVC, which can protect your items from rain.[Large Capacity Design]: Waterproof rear bike bag on both sides of the rear bicycle rack, 30L capacity, large enough. Provides space for storing bicycle tools, hair bags, gloves, small curtains, laptops, clothes, shoes, etc. All requirements for daily pendant and long-distance travel can be met.[Easy to Use]: Rear Frame Bag There are 2 straps in the bottom of the bag, which can help fix the bag and protect the riding bag from falling off when riding, easy and convenient to install and can be removed at any time for easy transportation. Perfect for outdoor walks, picnics with friends.[Waterproof Function]: The waterproof rear bike bag on made of high quality 600D Oxford material. Infuse water drops with water repellent properties. The zipper has a nylon layer to prevent water seeping into the zipper slot, but it is not recommended to be exposed to heavy rain for a long time.[Multi-Function Bike Pannier]: The Rear Bike Carrier Bag compatible with mountain bike, folding bike and travel bike, versatile for long trip or daily use. This bag can be carried as a handbag or a backpack using the shoulder strap and the handle. The adjustable and removable shoulder strap makes the bike bag also usable as a shoulder bag. Ideal for long trips or everyday use, or as a Father's Day gift.