Product features liquid-proof fitted mattress protector mattress 100% cotton top surface, 100% liquid-proof bottom surface, 100% cotton skirt, 100% cotton towel front surface has a soft texture. the back of the product is membrane and liquid-proof. it does not contain pvc material." the fabric with the oeko - tex standard 100" certificate does not contain any substances harmful to human health. it protects your mattress against all liquids. your mattress will remain dry and hygienic, and its life will be extended. it helps to prevent the formation of sweat. it helps to prevent the formation of dust mites and other allergens. it is hypoallergenic. it completely wraps your mattress with its 30 cm base (skirt). it prevents the duvet cover from slipping. it is a must for long-term inpatients, children trying to gain toilet habits, and pet owners. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.