Fabric: The product is a three-layer design structure, the outer layer (surface cloth) inside the table has a combination of a high elasticity of tensile, soft, and can not wash many times without deformation, with waterproof breathable film, to prevent the baby's Urine leakage, Size: all code, buttons can be adjusted for the big, medium and small three yards, the design of reasonable adjustment buckle, suitable for any age baby