Heavy duty construction and ample space. Our 2001-Comp computer case is constructed out of 600 denier polyester, and has 3 large pockets, 1 fully removable padded lap top sleeve, 3 removable exterior pockets, and convenient compartments for all of your pens, papers, and miscellaneous office supplies. Each bag has a reinforced padded carry handle, and removable padded shoulder strap.