Bange 17.6inches usb waterproof bag travel custom school laptop interlayercarrying system:air cushion belthandle/strap type:hard handlelining material:polyestermain material:nylonstyle:fashionfeature:with usb, anti-theft, waterproof, expandablecapacity:20-39 litre, 20-35 litrematerial:oxfordguangdong, chinabrand name:bangemodel number:1908type:softbackgender:malepattern type:letterclosure type:zipperinterior:computer interlayercarrying system:air cushion belthandle/strap type:hard handlelining material:polyestermain material:nylonstyle:fashionfeature:with usb, anti-theft, waterproof, expandablecapacity:20-39 litre, 20-35 litrematerial:oxfordguangdong, chinabrand name:bangemodel number:1908type:softbackgender:malepattern type:letterclosure type:zipperinterior:computer interlayercarrying