Size: Double - 140X200X30cm Material: 100% High-Performance Polyester Colors: White, Gray 【Features】 Perfect Fit with Stretch Material: This box sheet is made of highly elastic material that stretches both vertically and horizontally, making it wrinkle-resistant and easy to fit without ironing. Comfortable All Season: This sheet can be used comfortably throughout the year, in both warm and cold seasons. It can prevent the intrusion of most dust mites. Since no chemicals such as insecticides are used, it is safe for children and the elderly. 【Box Sheet Type】 Easy and perfect fit with all-around elastic! It stretches, so it's suitable for futons and thick mattresses! 【Washing】 Easy to wash at home and dries quickly, so you can use it cleanly every day. The fabric is durable and does not lose its shape even after repeated washing.