Cotton full edge fitted | liquid proof mattress | mattress protector | 4 seasons | anti-allergic bottom surface: consists of 100% liquid-proof polyurethane membrane coating. our product fits perfectly on your bed thanks to its stretchy special elastics, so it does not slip under your sheets and duvet cover. provides protection against stain formations it has an air permeable structure with its breathable micro pores and healthy components, thus protecting your health and your mattress. idealresistant to allergens and dust mitesuseful for long inpatientsideal for children and adults with bedwetting problems Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.