Carefree Dura-Mat. The Carefree Dura-Mat is the strongest, most durable mat available. Dirt and water filters through. Hemmed all around. Colored vinyl strands and reinforcement fibers are loomed into a woven fabric, then compacted and bonded for exceptional strength and durability. Constructed with reinforced brass grommets for staking mat to the ground. Dura-Mat comes in its own handy storage bag that can be re-used for years. Folds up small for storage. Size 8ft x 18ft Gray.