Item no:ES-IM-103 -Spec: Size(IN): 25*72*1.2/25*72*2 Material: 150Dpolyester/150Dp -Packing: 10PCs/CTN Weight(G): 1800/2137 *Mat filled with sponge ,can be rolled up,withstand the air,then screw down the valve.Put it in a carrying bag,it is easy to carry. *With tournure ,become more comfortable .