Treat yourself to guaranteed comfort with this 18''x18'' indoor/outdoor cushion. Cushions include an extra layer of water-repellent fabric on the inside. Made from 100% recycled bottles called RPET, a process that sterilizes the plastic, melts it and transforms it into polyester yarn. The process is known for its high tensile strength, abrasion resistance, low moisture absorption and UV resistance. A concealed zipper is included. The Mineral cushion features a delicately woven fabric to add comfort and style to your living space.