●MATTRESS ENCASEMENT - Fits Twin size mattress perfectly with dimensions 39 inches by 75 inches; 13 inches deep pocket ●KNITTED POLYESTER FABRIC - Stretchable knitted polyester fabric fits the mattress easily and gives a comfortable feel while you sleep ●ZIPPERED COVER - Zippered cover with zip secures the mattress from 360 degrees; it protects the mattress ●100% WATERPROOF PROTECTION - Mattress encasement protects your mattress from unwelcome spills and keeps your mattress clean and safe. High quality TPU backing on all sides resist any leakage into the mattress. ●EASY CARE - Machine washable; tumble dry for easy maintenance; Note: Packaging might slightly vary ●BED BUG AND DUST MITE PROOF: High quality zipper completely seals off an encasement and protects against bed bugs and dust mites.