Quarter sheet made of a waterproof Endura fabric. Designed to be used under the harness. Excellent for keeping the horse's back muscles warm during training. The rug has soft fleece lining. Two fastening straps on either side of the quarter sheet insures that it stays well in place. (M=warm blooded horses or horses who use approx. 135cm rugs. / L=big warm blooded horses and cold blooded horses who use approx. 145cm rugs.)