A martingale is a type of dog collar that provides more control over the animal without the choking effect of a slip collar. It is similar in concept to a horse's martingale.

Martingale Dog collars are also known as Greyhound Collars or Humane Choke Dog Collar. The Martingale Dog Collar was designed for  sighthounds because their necks are larger than their heads and they can often slip out of buckle collars. These collars have gained popularity among other breed owners in the recent past with many trainers now recommending them instead of choke chains or choke collars.

Martingale Dog Collars are fitted to the exact size of the dog's neck when the Dog Collar is pulled closed. Properly fitted, the collar will be comfortably loose when not in use. When the Martingale Control loop is pulled, the 2 slides (hardware on the small control loop of the Martingale Collar) should pull close together but the two slides should never touch.