Yes a heavy one. I have a dog that doesn't like strangers and want to eventually get her into a class (not private like I am in now). I have to anchor her to my waist and hold another lead as a back up. She is 100lbs and that is the reason the instructor asked for this. I also want to train her without sending my nervous signals down the lead so the belt would be the way to go. I know I saw one on the web and can't find the site again. A strong web belt would work too. The instructor suggested looking in the rock climbing type belts with the hooks on them. I bet it would be easier to put it on over the clothes since I would want to be able to take it off and on easier than one through the pants