It is with tangible filler inside, non profit popular pet nest! It is used by high-tech sterilization non-toxic fabric inside: the first grade pp washable cotton as filling material to effectively remove pet odor to keep your pet high-quality healthy living standard not only you pet baby looks seductively cute but convenient cleaning and super warm, let your baby feel warm in the cold autumn and winter because there is a warm harbor. Product specifications: Medium size: 50cm 40cm Large size: 62cm 54cm Intermediate mat can be pulled out The inner fabric : berber fleece The outer fabric: photosensitive velvet Insole filler: the first grade pp washable cotton. (machine washable filling material) Waterproof: dustproof & waterproof Washing: can be washed by machine, no deformation, stays the same.