AllerEase Hot Water Washable Allergy Protection Mattress Pad 100% Polyester With Polyethylene Film Allergy proof fabric prevents dust mites, allergens, pet dander, and pollen from collecting in the pad Hot water washable to kill germs and bacteria that can collect in your mattress pad Quilted design for additional comfort Hypoallergenic fiber fill Backed by the Good Housekeeping Seal of Approval