Elastic Fabric: Each desk chair cover is made of 90% polyester and 10% spandex, with enough flexibility. It is suitable for most computer office chairs. Zipper Design: You will love the high-quality boss chair cover with zippers, which are provided on both sides facilitate fixation and prevent shedding. Decorate & Protect: Redecorate your office chairs, it will give your office chair a new look if your chair looks a bit broken or not so new. It will also protect your chair from further damage. Care Instructions: Our boss chair covers are machine washable in cold water. Do not bleach. No dry cleaning. Iron in low heat. Packaging: chair cover + 2 armrests Material: Polyester Chair Size: Measure your chair before purchasing. Size L: Chair back: (16.5-21.7 inches) width x (22.8-27 inches) height/ Chair seat: (14.9-16.6 inches) width x (16.5-21.7 inches) length. Size XL: Chair back: (17.7-22.9 inches) width x (27.5-31.5 inches) height/ Chair seat: (17.7-23.7 inches) width x (17.7-22.9 inches) length.