?? UV Fade Resistant?: Samty Solution-Dyed fabric is used to ensure that each fiber is deeply dyed, and it can maintain vitality even after extensive use, and can withstand 1500 lightfast hours of UV fade resistance. ?? Waterproof cushion cover&Non-Slip bottom?: Samty outdoor seat cushions has waterproof coated cover inner with zipper design and non-slip bottom, keep rain out and protect the inside foam. Professional Non slip bottom keeps outdoor chair cushion from moving and more comfortable to sit. Those chair cushions for outdoor furniture are also very easy to maintain and clean, just wash the cover by washing machine. ?? Removable &Washable Cover?: Outdoor chair cushions are made with zippered cover which is removable and washable. Zipper lock keeps cushion tight closed and assists in cushion stuffing ?? High Density Foam?: 3 Inch thickness high resilience foam provide you superior comfort with excellent elasticity supporting and long-lasting recovery ability, and relieve buttock pain, it not only gives you enough support, but enables the cushion to maintain its original shape after sitting on that for a long time. ?? Multi-purpose Usage?: Suitable for outdoor chair cushion, loveseat sofa or couch pad, chair pads, patio seating pad, floor cushion, furniture replacement cushions as well as kitchen dining cushions, or other indoor area seat pad, home and commercial upholstery applications.