Backpacks Multi-Function Leisure Backpack With USB Charge Port Multi-layer backpack, make your belongs in order. Oxford cloth and dacron material, waterproof and wear-resisting, anti-cutting. External USB charge port free your hands and enjoy the travel. Large capacity, make the travle so easy. Adjustable shoulder strap and thickened pearl cotton material reduce shoulder pressure. Features: Multi-layer storage space backpack, convenient to store and take things. Oxford cloth and dacron material, waterproof, wear-resisting and anti-cutting. External USB charge port free your hands and enjoy the travel. 2 pocket large capacity, make the travle so easy. Adjustable shoulder strap reduce shoulder pressure. Pearl breathable pressure-reducing pad keep body dry and comfortable. SBS zipper, stable and durable and non-skid. Multi-function such as bus pass package and shrinkable side package help you live better. Detachable fixed button, can use with suitcase. Specifications: Brand: MARK RYDEN Model: 1 : MR9191DY-00 2 : MR9191DY-SJ00 (optional) Color: Black Material: Oxford Cloth + Dacron Style: Leisure Strap Quantity: 2 Pocket Quantity: 1 : 2 2 : 3 (optional) Capacity: 20-35L Backpack Size: Middle-Sized Opening Way: Zipper Lock: No Rain Cover: No Popular Element: Sewing Thread Bearing System: Arc-Shaped Strap Pull Rod: No Function: Waterproof, Breathable, Wear-Resistant, Anti-Theft, Load Reduction, Anti-Knock Package Weight: 1 : 1100g / 38.80ounces 2 : 1150g / 40.57ounces (optional) Item Size: 460 * 320 * 160mm / 18.11 * 12.60 * 6.30in Package Size: 460 * 320 * 50mm / 18.11 * 12.60 * 1.97in Package List: 1 * Backpack