Outer fabric: 100% polyester (100% ocean plastic), 1 outer pocket× 1 inner pocket, 1 inner pocket× carry-on function, removable laptop case (compatible with 15-inch PC), welder crimping * Due to the characteristics of the material, the color may transfer due to friction during use or contact in wet conditions. Due to the characteristics of the material, friction may cause white marks on the fabric. Since urethane resin is used, it may deteriorate over time.