Item:Utility-type baptop backpack Size:L31*W11*H36CM Material:600Dpolyester,PVC, Linding:210D,EPEfoam laptop size:about 15" Item:Utility-type baptop backpackSize:L31*W11*H36CMMaterial:600Dpolyester,PVCLinding:210Dpolyester+6MM EPE foamLaptop size:about 15"Shoulder straps:600Dpolyester+webbingParts:plastic adjuster,verlco, shoulder padFormation: two main pockets