1、Made of high quality nylon material, wear resistant and firm, durable and long service life. 2、External USB interface design, make travel more convenient. 3、Independent bladder, double opening design, up and down can separate. 4、Carry an external foot stool at the bottom, the tightness is adjustable. 5、Comfortable waterproof fabric, professional waterproof rain cover, more safe. Features: 1. Made of high quality nylon material, wear resistant and firm, durable and long service life. 2. External USB interface design, make travel more convenient. 3. Independent bladder, double opening design, up and down can separate. 4. Carry an external foot stool at the bottom, the tightness is adjustable. 5. Comfortable waterproof fabric, professional waterproof rain cover, more safe. 6. Honeycomb cooling grid thick shoulder straps, comfortable and relaxed. 7. Back tie rod fixing strap, external draw-bar box. Specification: Condition: 100% Brand New Item Type: Camera Backpack Bag Brand: EIRMAI Model: DQ310B Material: Nylon Buckle: High Quality Buckle Optional Color: Dark Gray, Dark Blue, Light Gray Capacity: 1 x Camera,  2 x Lens/ 1 x Camera,  1 x Len, 1 x Flash Lamp Package List: 1 x Camera Backpack Bag 1 x Rain Cover