The cozy fleece material is filled with premium natural grains that conform to the shape of the foot. When heated the grains slowly and evenly release therapeutic warmth. Ideal for arthritis, tendonitis, stiffness, chronic cold feet, and sore or aching feet. Heat quickly in the microwave. Reusable. One pair - fits men or women. Color: Black.

Series Size Men's Shoe Women's Shoe 53-425 Small 7 - 8 5 - 6 53-425 Medium 9 - 10 7 - 8 53-425 Large 11 - 12 9 - 10 53-425 X-Large 13 - 14 11 - 12 Size according to US shoe size.