Martingale (greyhound or lupine) dog collars are popular for gentle control verses a choke chain. Originally designed for sighthounds, they also work well for dogs who try to back out of their traditional buckle collars. Also popular with agility and flyball trainers who want gentle control of their dog at all times. The collars are designed to lay flat on the dogﾒs neck and are often much wider than traditional collars.
Martingale video overview
Fitting Note: A martingale collar should be fitted to your dog's neck to ensure that when the control loop is pulled, the two ends are close but not touching. When properly fitted, the collar will be comfortably loose when it is not in use. If properly fitted, a martingale collar is safe to wear everyday. When used for training as an alternative to a choke chain, the martingale collar should be adjusted to fit slightly tighter for the time of supervised training only.