The Waldhausen Comfort Horse Walker Rug is a waterproof and breathable rug making it ideal for use while exercising your horse on a horse walker. This rug is padded with 100g thermal filling and lined with sweat-absorbing fleece for maximum comfort. To ensure an ideal fit, the rug comes with cross straps and elastic insert. Additionally, the rug includes detachable fillet string and leg straps. Fabric composition: Outer: 100% polyester, Lining: 100% polyester, Filling: 100% polyester.