I have two Dogo Argentinos (also know as Argentinian Mastiffs). A 2-year-old 85lb female and a 9-month-old 100+lb male. Finding a leash I can train my gentle giants with that is comfortable AND strong has been a challenge for me. Most leashes that are strong enough to hold and stop them if they decide to go after a wild rabbit are almost never comfortable enough not to hurt my hand when they do. If the leash is comfortable in a situation like this, it often snaps once my male reaches the end, thus making it completely useless. This leash is EXTREMELY comfortable AND stands up to the rabbit test! I will be purchasing another for my female.