Title: Default Title The Ultra is a full wrap to ensure coverage even if they have an extra hard way of twisting while pushing off the ground. It can also be used for horses with arthritic hocks to prevent chill. The thin neoprene and double layer of fleece make a very comfortable but tough boot that can be worn full-time for those horses with deep chronic sores. Sold in pairs.Condition: Used - Good - Light shavings and horse hair, no damage Size: L/XL - 15″ – 16.9″ Measure the smallest point just above the hock joint. Make sure the leg is straight and the hoof is flat on the ground. Color: Black