Come and see our amazing products. The outer side of the computer briefcase bag is made of waterproof Oxford cloth. The inner lining is made of four corners and the soft flannel material is very soft. There is a sponge pad on the other side,which will not scratch your laptop. The length of the shoulder strap can be adjusted according to your needs. It can be used as a messenger bag by slung on the shoulder or slung on the body. You can also remove the shoulder strap and carry it with the convenient handle. The double zipper is also a high-quality zipper, the opening and closing are not easy to jam, and the sliding is elegant. Our computer messenger bags for laptops adopts high-quality shockproof function to enhance shock and scratch resistance. The top is a double handle, which is strong and not easy to drop. Pls confirm further with us if any query about packing info, inventory status and time schedule.