Acavallo Opera Fetlock Boots E-Click FasteningAcavallo fetlock boots with polyurethane shell and neoprene and gel interior. Anatomical and performing. The Opera fetlock boots in polyurethane and E click fastening closure represent excellence in the protection of your horse's limbs. Featuring a single elastic band fastening closure, these boots provide a reliable fit without compromising your horse's freedom of movement. Thanks to the innovative E click patented hook, fastening and releasing the