Features: 1. High-performance solar panel: standard USB output, ensure emergency charging when traveling, outdoors, hiking, hiking, fishing or cycling. 2. Multipurpose: Made of durable, eco-friendly nylon fabric with two curved straps that provide light and strong reinforcement for business travel, weekend vacations, shopping, professional office and other outdoor activities. 3. Breathable design: The back breathable area is larger than the average backpack, the back uses the punch design, with ventilation network and comfortable foam filling, ergonomic design, the additional back support makes you more comfortable, makes you enjoy riding more fun. 4. Waterproof durable material: This backpack is made of high-quality durable nylon cloth, anti-tear, environmental protection, long use time. It makes the backpack light, waterproof effect is better than the general material, when you ride on a rainy day, do not worry about things will be wet. 5. Suitable for business, school, university, hiking, travel, camping, day trip and other outdoor activities. Specifications: Condition: 100% New Item Type: Solar Backpack Material: Nylon Optional Color: Red, Black Capacity: 10L Solar Panel: 6.5W 6V Solar Panel Efficiency: 22% Size: Approx. 40 * 25 * 10cm / 15.7 * 9.8 * 3.9inch Weight: Approx. 705g Package List: 1 * Solar Backpack 1 * Water Bag 1 * Solar Panel 1 * USB Cable 1 * Water Bag Tube