●13 inches: 34 * 24 * 4cm; 14 inches: 37 * 27 * 4cm; 15 inches: 40 * 30 * 4cm. ●The exterior is waterproof and wear-resistant Oxford cloth, and the interior is velvet to absorb shock, which can protect your laptop well. ●Detachable shoulder strap;Double zipper on the side; There are a hidden zipper pocket on the front of the computer bag. ●Can be fixed on the suitcase, very suitable for business travel. Great as a Brithday, Thanksgiving, Chistmas, New Years gift for women and men.