explain: Product Name: Outdoor Sports Waterproof Backpack Material: Oxford fabric Color: black, mud, military green, ACU, digital jungle, etc Size: 36 * 25 * 50cm Functions: three-dimensional ventilation, decompression, transportation, scientific loading, and deformation prevention. Splash shoulder straps effectively adjust body position and help balance stress. Large capacity, can accommodate A4 magazines, tablets, umbrellas, iPads, and other travel supplies. Package Included:*1 Pcs BAG (Tablet not included)