Give your legs a break with a Pair of Self-Heating Magnetic Leg Warmers With Knee Support Pads This pair of leg warmers has a built-in knee support pad panel The double sided dot matrix heating provides the self heating properties of the knee pads Choose from either a black or a white colour knee pad Available in a range of sizes from M to 2XL, for further sizing information see full details Made from a breathable fibre cloth and warm fabrics Stay warm using the Pair of Self-Heating Magnetic Leg Warmers With Knee Support Pads for 9.99 pounds