Specifications： Material: 600D waterproof oxford cloth Color: Black Capacity: About 12.5L (single); about 25L (total) Package size: About 36 * 30 * 2 Weight: About 320g Features: ❤Waterproof function: This one is made of high-grade material, which can prevent water from entering when riding in the rain, durable, wear-resistant and waterproof. ❤ Hook and loop design on the bag for quick release and installation for your convenience. ❤High quality zipper design, safer for the items inside and easy to open and close. ❤ Large capacity, two main pockets with multiple pockets, can hold many items. ❤Night protection: reflective strips design, make you more eye-catching at night, provide safety assurance, always escort at night. Package includes: 1 X bike bag