Olefin Anti-fading Waterproof Fabric +TPU Waterproof Coating + Waterproof Inner Cover+High Rebound Sponge. HIGH-GRADE TRIPLE WATERPROOF: The deep seat cushions adopt special outdoor waterproof fabric Olefin, add waterproof TPU coating on the reverse side, additional with waterproof inner cover, really achieve triple waterproof. ANTI-FADING OLEFIN FABRIC: The patio furniture cushion covers are made of special anti-ultraviolet Olefin fabric, which is sun resistant and cold resistant, with 4.5 color fastness, 2000 hours of exposure to the sun will not fade, there is no need to worry about fading. SUPER EASY TO INSTALL L-ZIPPER: Easy to solve the difficulty of the inner core is difficult to plug in, L-zipper of outdoor chair cushion lets you easily install it, no effort at all, pro-testing effective. High quality high resilience sponge, provides good support, not easy to deformation. SUPER THICK HEIGHT AND DIY STRAPS: Each outdoor deep chair cushions have super thick thickness of 6 inches to meet your thickness needs; The outdoor chaise cushions come with 8 DIY straps that you can cut short or cut off suit for different types outdoor lounge chair. QUALITY DETAILS: Outdoor seat cushions have beautiful invisible zipper, advanced exquisite piping strengthens the edge, strengthens the edge stitching, more lasting, the time will last longer. The handle of deep seat cushions are easy to carrying and very friendly to your waist. OLEFIN FABRIC: Olefin fabric of patio sofa chair cushions are made of a special material - polyurethane, specially made for water and fade resistance, the surface has a distinct texture with medium softness. PACKAGING: The patio deep sofa seat cushions use vacuum compression packaging, can not be quickly restored to the actual size after opening, in the sun or use a hair dryer, Contribute to the foam to recover the thickness. HOW TO MAINTAIN: This deep chair cushion set consists of one chair seat cushion and a back cushion. Rinse gently with a soft brush or rag and allow to dry. TIPS: Olefin fabric may have wrinkles, you can wait for natural recovery or low temperature ironing. The outdoor deep seat chair cushions when not in use, easy to keep, longer life. The new deep seat patio cushion set has separate cushion and back, and comes with 8 adjustable straps and portable handle; Taking into account most people's requirements for waterproof, we use a special waterproof fabric - Olefin fabric, and add TPU coating on the reverse side, and waterproof inner cover, truly waterproof; We use a color fastness level 4.5 fabric - Olefin, fully meet most people's requirements for anti-fading cushions, to maintain five years of color; We collected a lot of customer requirements that add two extra long straps to each corner of the seat and back, as far as possible to meet the needs of each type of recliner, if you do not need so many or so long straps, you can also cut off or cut short; We collected the customer's requirements for sofa chair cushions, and used more full and three-dimensional memory sponges to fill the backrest, which is a new experience. In addition, in order to meet the needs of our customers, we achieved the first in the market to use 6-inch thickness of the patio deep chair cushions; Some customers reported that the inner core was difficult to fit in, so We came back with an L-zip this time, which perfectly solved the problem; The lounge chair cushion surface of Olefin fabric has a sense of texture, is a high-grade and expensive fabric. There are also exquisite piping and invisible zippers are also small details that can not be ignored; If there is anything that needs to be upgraded that we have not considered, please contact us, your satisfaction is our aim.