BedCare Classic allergen mattress covers are dust mite and mold-impermeable mattress encasings made of a lightweight polyester knit fabric joined to an ultra-thin, allergen-proof ComforTech polyurethane membrane. The BugShield Zipper-Lock design ensures bed bugs will not get in or out of your mattress encasing. This waterproof mattress cover is made in the USA. BedCare is your first step to a healthy, better night's sleep.