Top surface: micro (polyester) fabric bottom surface: 100% liquid proof 1. quality membrane coating side: cotton-polyester mixed pampes fabric our fully permeable mattresses with elasticated edges do not slip under the duvet cover and offer excellent protection without interrupting your comfort. the product is not in the form of a cover, it is in a flexible structure that surrounds your mattress. for this reason, you should choose the same size product as your bed when ordering. if you do not want to use the product for many years and have no shrinkage problems, wash it at as low a temperature as possible. although the highest recommended temperature is 60 degrees, it has been proven in the r&d tests that the life of the product is extended if it is washed at 40 degrees. dimensions: (width x length x height) baby: 60x120x30 / 70x140x30cm single: 90x190x30cm / 100x200x30cm / 120x200x30cm double: 140x200x30cm / 150x200x30cm / 160x200x30cm mattress length: 180x200x30cm / 200x200x30cm it not only protects against all kinds of liquids, but also prevents the formation of sounds such as rustling. it does not irritate the skin and offers comfortable comfort. it does not sweat thanks to its air permeability. it does not keep stains, does not create bad odor. it provides protection against the formation of dust mites and other allergens. usage areas at night it is ideal for people who have sweating problems. it is useful for long-term inpatients. it can be used for children and adults who have problems with wetting. washing instructions. chemicals such as bleach should not be used. it can be washed up to 60 degrees. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.