Outlast is a temperature regulating material developed for NASA in the United States. It's an innovative material that regulates the surface temperature of the body, preventing it from getting too hot or too cold. Manufacturer: Oota Fitted Sheet Brand: Thinkence - Color: Ivory - Material: Polyester, Cotton, Rayon - Design: Quilted finish - Size: Single size, approximately 100 cm x 200 cm Machine washable (hand wash) It was 15,000 yen at ASKUL.