Aer-Flo Bench Zone sideline track protectors are designed for tracks that fit tightly around football fields. The durable geo-textile fabric protects the track surface in the bench area against cleats and other items but allows rain to drain through. Polypropylene fabric has a double-stitched vinyl edge. Steel chains are inserted all around the edge of the protector to keep it down in windy conditions without using stakes. Edging is brightly colored for maximum visibility.