Our anti-fatigue gel mats are made of premium quality PVC material making it convenient to clean up and will not collect dirt. The material repels water, liquids, oils or stains and if anything spills, it makes an effortless clean up. Simply wipe them off with a damp cloth and a hand-held vacuum can be used if needed. The waterproof surface and strong durable material withstands the test of time and help keep their shape,even with extended and heavy use.