(OK for cleaning at home) We do not use high-grade leather materials, but it uses high quality synthetic fibers that can withstand rough handling. You can always use and store it clean. When washing, either hand wash or machine wash in a laundry net, please use a warm water or mild detergent. Detergents with strong acid and alkali like bleach may damage the fabric. After washing, please dry it in a shady and well-ventilated place.Do not tumble dry. (Mesh Material for Excellent Breathability) The back side is made of a partial mesh material that is highly breathable, so you can use it more comfortable.