Our waterproof mattress cover crafted from premium terry surface and waterproof TPU membrane layer. Soft premium cotton terry surface is breathable and highly durable, the TPU protects your children’s valuable mattress from spills and accidents. It will extend the life of your children’s mattress. With full elastic trim all around 4 sides, safely and securely fitted for mattresses and makes sure that the mattress protector stays in place and not easy to slip.