Thank you for viewing. I purchased this item this year and used it for only two weeks. There are no problems with its use. Please understand that this is a used item before purchasing. N Cool Super Nitori Fitted Sheet Single Blue 100 x 200cm Contact Cooling N Cool Super Stay comfortable even in the hot summer with super cool contact cooling. It has higher moisture absorption and release than regular polyester cotton, keeping you dry and comfortable. It also has a room-drying odor-suppressing treatment and antibacterial and deodorizing treatment, which can prevent odors. In addition, it has 3 major deodorizing functions (ammonia, acetic acid, and isovaleric acid), so it stays hygienic even after a long time. Easy to wash because it has excellent absorbency and dries quickly. An ideal fitted sheet that is easy to care for and you'll want to use every day. The moisture-absorbing and releasing cotton provides a smooth, dry feel, making it less stuffy and comfortable. Use the cool contact "strong" cooling fabric surface on the front side on hot days and nights, and use the quick-drying, breathable soft knit mesh fabric on comfortable days, so you can use it for a long time according to the season and temperature. Nitori's contact cooling N Cool Super outer fabric ● Comfortable and dry, less stuffy with moisture-absorbing and releasing cotton ● Deodorizing function to suppress unpleasant odors such as sweat ● Uses quick-drying fabric that dries easily even after washing ● Antibacterial and deodorizing treatment to reduce odor-causing bacteria ● Room-drying odor-suppressing treatment Outer fabric composition: Outer fabric: 69% nylon, 23% polyethylene, 8% rayon Filling: Upper layer: 65% polyester, 35% synthetic fiber acrylate yarn Lower layer: 100% polyester Back fabric: 100% polyester Machine washable (use a net) Pattern: Plain Color: Blue Size: Single Main material: Polyester Main material: Hemp/Linen Main material: Other