536686 Size: Twin Features: -Material: 100pct Cotton.-Ideal for protection against dust allergens and pet dander.-Mean pore size less than 6 microns.-Zippered cover for total protection.-Rust proof polyester zippers. Construction: -Membrane-free, tight weave construction. Dimensions: -Twin Dimensions: 86" H x 66" W.-Full / Queen Dimensions: 86" H x 86" W.-King Dimensions: 106" H x 86" W. Collection: -Allergy Care collection.