Features: Using high-density waterproofed materials to ensures effective protecting of backpacks and their items in harsh weather conditions. Equipped with reflective strips to enhances visibility and improve walking safety at night or in low light environment. Provide different size option, compatible with most backpacks, and meet diverse needs. Folding, light weight and convenient, portables without taking up space. Use wear-resistant and tear resistant professional materials to increase the durability and service life of the product. Specifications: Color:Three Choices Height:40-53cm/15.74-20.86in Length:20-32cm/7.87-12.59in Width:15-20cm/5.9-7.87in Component:Waterproofed Polyester Package Includes: 1pc Reflective Rain Cover note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.