1.FABRICS AND MATERIALS: 85% polyester fiber and 15% spandex fabric make our cushion covers more elastic and durable. Our cushion covers are stretchy to fit regular square seat cushions and also T-cushions 2.WATER REPELLENT- (Not waterproof): Our Water-Repellent sofa seat cushion covers can protect your couch seat from wet stains, spills and tearing, especially for homes with and pets. Warm Note: Please wipe off the liquid spilled on the sofa immediately, it is not water proof 3.FUNCTION: Owning a cushion cover can not only reduce the wear of the sofa cushion and increase its life, but also can make some broken sofa cushions look . If you have children and pets at home, cushion covers are essential to you because they may damage your sofa cushions at any time. 4.ELASTIC BAND DESIGN:Our cushion cover is designed by a professional team. The elastic band design makes it easier and more convenient for us to install and disassemble. It can not only fix the cushion cover firmly and keep it in place but also save your time and energy. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.