Features cavity under toes for Heat Factory foot warmer. New air channels increase air flow to foot warmer. Offers top shape and design for shock absorption, comfort, and warmth. Compressed molded 6 lb EVA with outer sleeve of polyethylene for extra support. Brushed nylon top with anti-microbial and antifungal additives. Limited quantity.
Available sizes, while supplies last, include size small and size medium: s, m.