Ideal for boots, slippers and most other footwear, these Thermal Shoe Insoles are specially designed to stop the transfer of your body heat to the cold ground. Made with foam and fleece, each insole has shoe size patterns underneath - just cut to size and go! Fits ladies size 3 all the way through men's size 11. Surface thickness is approximately 1/4". Made from polyester and foam Ideal for boots, slippers and most other footwear. Fits ladies size 3 all the way through men's size 11. Surface thickness is approximately 1/4". 2 Pack