Backpacks Multi-Function Business 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. 2 pocket large capacity, make the travle so easy. Adjustable shoulder strap and stereo honeycomb pressure-reducing pad 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. 180 degrees open large capacity, make the travle so easy. 2 pocket large capacity, make the travle so easy. Adjustable shoulder strap reduce shoulder pressure. Stereo honeycomb 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. Inner space have separate digital compartments. Specifications: Brand: MARK RYDEN Model: 1 : MR9668_00 2 : MR9668SJ_00 (optional) Color: Black Material: Oxford Cloth + Dacron Style: Business Strap Quantity: 2 Capacity: 20-35L Backpack Size: Big-Sized Opening Way: Zipper Lock: No Rain Cover: No Popular Element: Sewing Thread Pull Rod: No Function: Waterproof, Breathable, Wear-Resistant, Anti-Theft, Load Reduction, Anti-Knock Package Weight: 1 : 900g / 31.75ounces 2 : 1000g / 35.27ounces (optional) Item Size: 1 : 450 * 300 * 150mm / 17.72 * 11.81 * 5.91in 2 : 450 * 300 * 160mm / 17.72 * 11.81 * 6.30in (optional) Package Size: 450 * 300 * 60mm / 17.72 * 11.81 * 2.36in Package List: 1 * Backpack