Polyester SIZE GUIDE: 3 PC included. Fit a cushion with 20-25" in length, 20-27.5" in width, 2-9" in height. With great elasticity, fits for more than 90% cushion. Wider size application due to the elasticity and the stretchy band we have on the bottom. UNIQUE FUNCTION: Different from other materials, the fabric we used will not absorb water for about 3 seconds. You can use the time gap to wipe, which saves your time on washing and exchanging. FINE MATERIAL: 85% polyester and 15% spandex. Soft, breathable, and durable, meanwhile remains the high stretch-ability. The jacquard fabric is crease resistant, so the cushion cover will stay in shape no matter how you sit or wash it. CUSHION COVERAGE: With the elastic band all around the edge, the cushion cover will be in place. There is no need to adjust after somebody sits on the cushion. Avoid your furniture from daily wear, scratches, and other accidents. MATCH IT ALL: The cushion cover not only covers the damage of your old furniture but also gives your home a brand new look. Twenty-two colors for you to choose to match your home decoration. Holiday color offered helps related to the festivals.