Reversible, semi-double size cooling mattress pad, suitable for spring, autumn, and summer. - Model Name: N Cool SD RO S2501 - Color: Rose - Size: Semi-double - Reversible: Usable on both sides - Season: Spring, Autumn, Summer - Material: Cooling material I intended to buy a double size, but I accidentally bought a semi-double. I took it out of the bag, but it's almost new. I purchased it this year for 3490 yen. *Was washed and stored at home.