37230 Swede-O Thermal Plantar DR SupportThe Swede O Thermal Vent Plantar DR is designed to help relieve pain and discomfort from plantar fasciitis, Achilles tendonitis, and other conditions. The non elastic strap pulls the ankle into slight dorsiflexion position and extends the toes to gently stretch the plantar fascia; passively stretching the calf and Achilles tendon while resting or sleeping to help alleviate morning pain and discomfort. The gentle stretch helps reduce muscle