Combo Under Rug Stable. For extra warmth in the winter, the Combo under rug is ideal for using under other Mark Todd rugs. It is designed with a cotton outer to stop other rugs slipping over it. Outer Non slip channel quilted cotton. Inner cotton lining, 250g filling.Single breast strap, double hook and loop neck fastening and low cross surcingles (filet string not supplied). Buckles and surcingles reinforced. Combo neck design which can be worn as a neck cover or a folded back according to your horse's needs.