Skysper Small Daypack 20L Hiking Backpack Lightweight Travel Day Pack, Navyblue WATER-RESISTANT AND DURABLE: SKYSPER 20l Hiking Backpack is made of high-density 600D polyester and 210D nylon plaid fabric, which is water-resistant, tear resistant and wear-resistant. All of the backpack's stress points and shoulder straps are reinforced with lap-knots to ensure long lasting durability. ERGONOMIC AND COMFORTABLE: The breathable grooved carrying system keeps your back comfortable and relaxed during travel. Breathable mesh on the back fabric can reduce sweating for extra comfort. Our backpacks are designed so that you can lighten the burden on your back during a hiking or a trip. UNIQUE APPEARANCE AND SAFETY DESIGN: The 20l day hike backpack is the perfect combination of function and fashion, with a simple and smooth design featuring open pocket on the front for more flexibility and easy expansion during hiking. The small daypack comes with an outdoor emergency rescue guide providing additional safety information for lovers of the outdoors. The reflective design also increases visibility, making it safer at night. ADJUSTABLE AND REMOVABLE STRAP SYSTEM: The hiking daypack is designed to have convenient trekking pole fixtures. Open front-end plugins can also be adapted to different hiking gear and multi-functional extensions. The 20L backpack also features detachable straps and an adjustable chest strap, allowing it to meet the requirements of a variety of situations. It comes with safety whistle, making it the perfect hiking backpack for outdoor activities. QUALITY GUARANTEED: SKYSPER is a store specializing in outdoor products with its own unique achievements in outdoor product manufacturing. If you encounter any problems or dissatisfaction during the purchase process, please contact us! Shop worry-free with our money back guarantee!