Fenway has a retractable leash and he forgets all of his manners when he is on it. Retractable's are not the best leash. If I had a bigger dog, I would use a "normal" leash. Lupine is a good product (made in NH). Fenway has several of their collars & leashes (when we actually use a "normal" leash). To get complete control over your dog, a "normal" leash is the best. IMO.