Protective Covers Inc. Has been manufacturing high quality patio furniture covers for over 10 years & pride ourselves on bringing the highest quality products to the Casual furniture marketplace. Pci only utilizes rich, luxurious, UV treated vinyl giving you years of water-resistant outdoor protection. Our Dura-Gard vinyl is 7-mil. Thick & features a 4 oz fleece polypropylene backing. The fleece is compressed into a solid sheet & laminated onto high quality vinyl. This process ensures the fleece won't pull off onto your furniture & adds an unbeatable amount of strength to the cover. Keep your furniture looking new for years with these ultra-high quality covers from PCI.