Fetlock boots Fetlock boots serve for protection of the hind legs. Some horses hit themselves with the hind legs what causes wounds continuously. A proper fetlock boot is therefore a must-have! Take a look at our collection of fetlock boots. Do you have any questions concerning fetlock boots? The team of De Kroo is happy to help. Buying fetlock boots? Buying fetlock boots - Fetlock boots are available in different models, often matching the tendon boots. When buying fetlock boots we have a choice of options, consisting of the brands Eskadron, Zandona, BR, BR Lorenzini, QHP, Back on Track, HB, Harry's Horse, Prestige, Kentucky, HKM and Kentaur.