Tendon boots made from durable plastic lined with perforated neoprene for air and heat wicking. The 3D polyester mesh inner helps maintain a comfortable temperature and wicks away excess heat. Ventilation holes in the shell allow surplus heat to be wicked away. Moulded shell with cutout to better allow the shell to fit around the bone. Velcro fastening. 100% polyester synthetic sheepskin edging helps to stop dirt and grit from getting inside.