From Nishikawa, this warm, moisture-absorbing and heat-generating敷きパッド is perfect for the cold season, with a soft and comfortable feel that you'll want to touch. The blanket fabric on the body side (outer fabric) uses a material that blends rayon, which has moisture-absorbing and heat-generating properties due to its material characteristics. It absorbs moisture from the body, generates heat, and keeps you warm. The microfiber blanket fabric has a brushed finish on both the inside and outside, trapping warm air. The filling uses polyester wadding that brings out the volume and softness. It comes with rubber bands on all four corners to prevent slipping, and can be used on both敷きふとん and mattresses. It is machine washable (using a net), making it easy to care for. *May not be washable in drum-type washing machines. Material: