OUMANTU 2101-1 Large Capacity Backpack Waterproof Computer Bag, Color: Ant Cloth Gray 1. Using water-resistant fabric, scratch-resistant and wear-resistant, comfortable and breathable 2. With a trolley strap behind, used with luggage, labor-saving and convenient 3. External USB charging interface, convenient to use 4. Double pull head design, smooth pulling together, convenient and practical 5. Thickened comfortable handle, strong and wear-resistant 6. Clear hierarchical structure, partition management, large capacity 7. Back with three-dimensional honeycomb breathable design, promote air circulation, keep the back dry, gravity transfer, buffer protection, thickening and pressure reduction 8. Material: ant clothleather film fabric, polyester lining 9. Applicable computer size: within 15.6 inch 10. Size: about 31.5 x 41 x 11cm 11. Description: only the backpack, not including other items in the picture Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.