BedCare Organic All-Cotton Mattress Encasing - 23cm Deep Full - Experience The Excellence Of 100% Organic Cotton Plus The Guaranteed Quality Of American Workmanship - Organic All-Cotton mattress and pillow encasings are made of unbleached 100% GOTS (Global Organic Textile Standard) Certified Organic Cotton so you know you have the best quality available. Only air can permeate this tightly woven fabric with a pore size of 4.8 so you and your family experience total protection from dust mite allergen and bed bugs while you sleep. The quality of these zippered covers is guaranteed because of the care American craftsmen put into each and every one. Even the most discriminating cotton-lovers will be delighted with Organic All-Cotton Encasings. Machine wash and dry. Lifetime Warranty.