Quarter sheets are used in cold weather to keep the horse's back and loins warm, and to prevent rapid muscle cooling, which can lead to chills and cramping. This model is made from tough 600 Denier polypropylene material that is both waterproof and breathable. It is lined with polar fleece for improved warmth and strong plastic clips for quick and easy fitting. Rump darts and a fillet cord offer a superior fit. This model also features reflective trim for added safety, particularly in traffic.