John Whitaker Tendon and Fetlock Boot Set in Black. John Whitaker Tendon and Fetlock Boot Set is a stylish and practical set ideal for everyday use and providing protection from bumps and scrapes. The John Whitaker Tendon and Fetlock Boot Set features a soft plastic outer to provide protection from strikes, a neoprene foam inner which provides comfort and shock absorbing technology. The boots are strong and durable with double fold touch tape fastenings. The boots feature contrast stitching and the new John Whitaker branding. The set comprises of a pair of Tendon boots and a pair of Fetlock boots.