The Thermoskin Thermal Foot Gauntlet is designed to elevate skin temperature and increase circulation, which provides pain relief associated with Diabetes, Arthritis and Raynaud"s Disease. Understanding the difficulty pain sufferers have with wearing supports, Thermoskin"s Thermal Foot Gauntlet uses an open design that makes it easier to fit and attach the support. The non-slip safety sole has a rubber grip bottom which helps prevent slipping. The Thermal Foot Gauntlet has been clinically proven to increase both the surface and subcutaneous skin temperature 2 to 3 ?? F for the optimal level of heat therapy. Thermoskin Foot Gauntlet Sizing Guide: X-Small fits Men"s shoe size 3-5, Women"s 4-6Small fits Men"s shoe size 6-7, Women"s 7-9 Medium fits a Men"s shoe size 8-10, Women"s 10-11 Large fits a Men"s shoe size 11-12, Women"s 12-13 X-Large fits a Men"s shoe size 13-14, Women"s 14-15 XX-Large fits a Men"s shoe size 15+