The recommended way is to use warm water and dish soap. Soak the mousepad under your sink and using dish soap (or a small amount of laundry detergent) and a soft brush, clean the surface thoroughly. Be gentle around the edge of the mousepad or you can damage the stitching. You can let it soak for a while beforehand as well, this will help remove any stains.The process used to put the image on the mousepad is permanent and water/dish soap will only remove any stains or dirt that accumulated during use, not the image itself.To dry, hang the mousepad somewhere indoors and wait 12 hours. Do not use heat to help dry and do not expose to excessive sunlight.Do NOT machine wash or dry with heat, ever! The high temperatures and spinning involved in both machine washing or machine drying are extremely damaging to the mousepad.Also, do NOT use any cleaners besides dish soap or mild detergent. Stain removers, carpet shampoos, and of course bleach could have drastic effects on the surface of the mousepad. We advise staying away from them.