Top Tier Material Our backpack rain covers are made from premium grade waterproof materials. The main fabric is a high-density waterproof polyester with a PU coating, delivering strong water resistance to shield your backpack and its contents from heavy rain, snow, and splashes. The material is also highly breathable to prevent condensation inside the cover. Universal Fit Design These rain covers offer a universal fit for a wide range of backpack sizes and styles. They are adjustable with elasticized hems and drawstrings to fit snugly around backpacks of different shapes and volumes, from small daypacks to large hiking packs. The front opening features a hook-and-loop closure or a zipper for easy access to the backpack front pockets. Reflective Elements for Safety Safety is a key design feature. The covers include reflective strips or prints on the sides and back to improve visibility in low light, such as rainy evenings or early mornings. This helps you stay visible to motorists, cyclists, and others when you are commuting or hiking. Ultra Portable and Lightweight Designed for maximum portability, the rain covers are extremely lightweight and fold into a compact size. They can fit into a pocket or a small pouch that comes with the cover, making it easy to carry without adding noticeable weight. When rain stops, simply stow the cover away without taking up much space. Use scenarios - Daily commuting in wet weather: protect your backpack and its contents from rain, snow, and splashes while staying visible. - Outdoor hiking or camping in drizzle: breathable design helps prevent condensation while keeping gear dry. - Travel and transit with various backpack sizes: quick to deploy and easy to access front pockets through the front opening.