The Sand-Free Multimat by CGear features a patented dual layer mesh technology which was used by military forces. The top layer of the mat is designed to repel sand, dust, dirt and other small objects and lets them fall through the bottom layer. The bottom layer is also designed to keep sand from sticking to the mat. In addition, the Sand-Free Multimat is a smooth and easy to clean. This cool outdoor gear that makes the beach, picnics or camping trips even better.