The All-In-One Comfort Top Mattress Protector with Bed Bug Blocker by Fresh Ideas is a simple, yet effective way to protect your mattress from bed bugs, dust mites and other allergens. All-In-One features an extra thick, breathable fabric specially treated with a permanent coating. This coating, along with our double-sewn seams, provides total protection. The encasement closure is extra secure and showcases a triple-seal closure system which has an inner flap, a hook & loop hidden seal and a nylon zipper to block unwanted bed bugs and dust mites. The stretch sidewalls neatly fit most mattresses/box springs up to 15 inches. Available in Twin, Twin XL, Full, Queen, King and California King sizes. Satisfaction guaranteed or return to us within 5 years for a full refund. Cover: 100% Polyester; Lining: 100% Polyurethane; Reverse: 50% Polypropylene/50% Polyethylene; Sidewall: 100% Polyester. Machine wash cold. Permanent press cycle with like colors. Do not bleach. Tumble dry no heat. Do not iron. Do not dry clean. Imported.