Shades 15″ laptop backpack. The Tranzip Case 15” laptop backpack features a 15” laptop sleeve so your laptop can go wherever you go. The front of this bag offers webbing tactical straps for hanging carabiners, a side water bottle pocket, tarpaulin accents and trolley sleeve. 300D Polyester outer, 210D lining. 300D Polyester, PVC Plastic.