Product details fabric type: 100% cotton fabric top contact surface: 100% cotton inner filling: 120 grams siliconized fiber filling middle surface: fiber holder 30 grams interlining bottom surface: 100% liquid-proof polyurethane membrane coating it is a stretchable, high quality, tough fabric. it is definitely not a useless fabric like thin tulle. it protects your mattress with its liquid-proof feature, extends the life of your mattress, increases your sleep quality and offers you the comfort you need throughout the night. our product should fit like fitted sheets with 360-degree elastic bands, and it will not slip under your sheets and duvet cover. liquid-proof mattress protectors that every bed needs, are ideal for long-term inpatients, children or adults with wetting problems, and pet owners. our product has the oeko-tex standard 100 certificate, which is the european quality and health standard. information: we recommend that you check your mattress dimensions before ordering. for your ease of use, if your bed side height is 25cm or less, which is the standard bed height, we recommend that you take the full size size with your bed, and if your bed side height is more than 25cm, take one size larger than your bed size. there is no shrinkage problem in our products after washing. product features with its 100% liquid-proof feature, it protects your mattress against all liquids and does not repel any liquid. it keeps your mattress dry and healthy, prolonging its life. if you get the right size for your mattress, it does not cause rustling or similar sound problems. it provides ease of use thanks to its easy washability and long washing life. .it has a breathable air permeable structure thanks to its micropores. it helps to prevent sweat formation. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.