Pair of Lux Ceramic Therapy Sport Boots - L. Black with blue trim (color no longer avail new.) Purchased from Schneiders several years ago and used a handful of times, they are in very good used condition. Slight signs of use pictured, no flaws. Sport Boots designed to offer protection and support, and similar to Back On Track products, the ceramic properties reflect back infrared heat onto the body to increase circulation which can help reduce inflammation and promote a faster recovery time. Also listing boots in medium. Including the size chart and measurements, but for size reference I used the Mediums as front boots and Large as hind boots on my 16.1 horse.