PATIO SLING FABRIC SAMPLE Lumina Patio Sling Outdoor Fabric manufactured by Twitchell. Made of 100% PVC Coated Polyester. this versatile outdoor mesh fabric can be used for patio furniture replacement slings, outdoor patio chair cushions and more. Lumina is a weave of grey, cream, brown and cadet blue. This fabric is NON-stretchable.