Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not made for really strong pr determined pullers

I've had a few of these premier harnesses over the years and used to swear by them, but recently purchased one for our dobie rescue. He is about 60lbs, which is 20 lbs lighter than our last dobie, but he the strongest dog I've ever owned. The harness worked great for him for the first week or so and then I started to notice it was rubbing his chest. It just seemed like his fur was getting thin, so I didn't worry too much about it. Then my partner took him on a long all day hike and he didn't complain but at the end of the day his chest was rubbed completely raw. It scabbed over the next few days and we're back to being pulled around by him at the other end of a choke collar until he heals. Beyond that, I'm looking for another brand of harness that won't hurt my pup.I would only recommend this harness for a dog who pulls a little.