[High-quality material]: Use high-quality waterproof soft PU leather, metal fittings and fabric lining, stylish and durable. [Practical structure]: Back zipper opening and closing, effective anti-theft design. 1 main zipper compartment, 1 internal zipper pocket and 1 internal slot pocket, 2 side pockets and 1 front zipper pocket. Multi-pockets can hold your A4 books, iPad, mobile phone, umbrella, and keep your daily objects in order. Size & Weight: (L) 12.20 x (W) 5.91 x (H) 12.64 inches, 1.35 pounds. Lightweight and comfortable, you can carry it with you. [Excellent design] Because it has a detachable short shoulder strap, it can be carried as a shoulder bag or backpack. The waterproof backpack prevents items from getting wet.