The Auriga Breastplate with a removable running martingale attachment effectively prevents the saddle from slipping backwards in the take-off phase. But it does not cause any pressure points, even at such moments of special exertion. Instead, it gives the horse maximum freedom of the shoulders, avoids any rubbing and thus replaces the combination of martingale and hunting breastplate. The running martingale attachment is adjustable in length, and removable.