We LOVE a Martingale and although they were initially designed for small headed sighthounds they are widely accepted as a brilliant style of collar for any kind of dog!
When fitted correctly they are an extremely safe, escape-proof, comfortable and long lasting collar, as well as looking fab-u-lous.
A martingale collar consists of two interconnected loops. They typically don't have a buckle (though we can custom add one) and slip over your dogs head, they then tighten and slacken with the lead but never to the point of any discomfort when correctly sized and used. They are super safe and encourage good walking habits!