Ultra soft mattress protector mattress features: 100% cotton top surface is cotton fabric bottom surface is liquid-proof nano technology membrane coating. alezi four corners are elastic, preventing it from slipping off the mattress. , dry cleaning and acidic chemicals are not used. liquid-proof mattresses can be washed up to 60 degrees at most. no ironing. more than 100 stocks are offered to be sold at the campaign price. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.