WATERPROOF PROTECTOR PAD Unlike vinyl and rubber pads our cover is soft and breathable material provides a nonsweaty and comfortable waterproof barrier ORGANIC COTTON We use 100 GOTS certified cotton for the top and bottom layers of our pads to offer a soft comfortable feel DRYSLEEP TECHNOLOGY Ultrathin waterproof barrier effectively blocks liquids from passing through while still allowing the fabric to breathe NO HARMFUL CHEMICALS Our mattress pads are completely nontoxic and free of vinylPVC phthalates latex and eliminates potential allergenic concerns FITS STANDARD SIZE CRIB MATTRESSES These fitted pads will cover mattresses measuring approximately 27 14 x 51 58 x 6