Everest Premium Mattress Encasement (King) (Fits 12-14, Size 78x80) 100% Waterproof Bedbug Proof Hypoallergenic Protector Six Sided Cover Machine Washable EVEREST PREMIUM PLUS Mattress Encasement 100% Stretch Knitted Polyester Micro Filament Fabric. Not Vinyl, Plastic or other cheaper material. Premium Zippered Six Sided Cover KING Mattress Encasement depth 12"(Fits 12"-14" deep) size (78"X 80"). STRETCHABLE STRONGER Fabric along with thick PU Lamination on All Six Sides: Top, Bottom and all other Four Sides, makes this protector/ cover Extra Durable and Waterproof. DOUBLE SIDED USE Since Top and Bottom layers have same Fabric and Lamination, it's easier to flip the mattress as desired without changing the mattress encasement side. VELCRO PATCH at the Premium Zipper end which prevents bedbugs from entering or escaping. The package will say 12" depth, but it will stretch to fit up to 14" depth mattress due to 100% Stretch Knitted Polyester Fabric. COMFORTABLE, SOFT & BREATHABLE. Despite the strong durability of our material, it is soft to the touch and noiseless, making it ideal for light sleepers. 100% BEDBUG PROOF, Water Proof, Hypoallergenic & Machine Washable. Recommended for people with Allergies, Asthma, Respiratory Conditions, Eczema, Incontinence, Pets, Kids. HOTELS, MOTELS, RESORTS, Airbnb, bed & breakfast, nursing homes, hospitals, homes, apartments, colleges, rentals & many more useful places. Encasement cover is fully Machine Washable in cold-warm water & Dryable with tumble dry low heat dryer temp. cannot exceed 115*F, cannot use bleach or be ironed.