Aero-Weave Breathable Outdoor Mats are better on grass than ordinary patio mats. Constructed of durable PVC-coated polyester mesh that allows air and sunlight to flow through. UV-protected to prevent sun damage and fading. All edges are hemmed to prevent fraying or unraveling and feature brass grommets for easy stake-down. Simple to clean with soap and water. It comes in a reusable zipper-bag with strap handles for compact and convenient storage.