The Vari-Layer® liner adds more warmth with less weight for all your liner compatible rugs. A simple system, Horseware® liners give your rug superior insulation properties without the need for 2 rugs. The liner attaches by Velcro loops to the neck area of the outer rug, and clips onto the back corners to prevent the liner from slipping. Liners can be easily washed in a domestic washing machine.