Back on Track Therapeutic Horse Exercise Boots for Hind Legs, Black, Medium These Exercise Boots are Made From Fabric Infused With Ceramic Powder; The Ceramic Reflects Natural Body Heat and Creates a Soothing Infrared Warmth Warmth Therapy is a Well Recognized Way To Reduce Pain And Chronic Inflammation The Exercise Boots are made from Durable Neoprene and Offer Superior Protection as They Maintain Close Contact with The Tendons and Bones in The Leg Back on Track Exercise Boots Are An Excellent Choice For Injury Prevention By Reducing The Risk of Ligament Damage Olympic Rider Michelle Gibson Says These Are "The Best Exercise Boots Ever"