The martingale collar is the perfect collar for sighthounds or any dog that tends to slip out of a collar because of head and neck size being similar. The tapered width will not put pressure on neck, so this style is good for a dog that tends to "choke" when walking. Soft, comfortable, washable deerskin  will not irritate even the most sensitive skin. Custom made to order for a perfect fit. Your choice of either a chain (better for large/strong dogs) or leather slip.