I posted chewy's photo 1st because of how well it shows the product. It is a little work to get it on properly, however it is doable, and the results are immediate. Roxy was able to walk with her hind legs much straighter.
I have a 85lb pit/lab/boxer mix. The large harness only fits at the absolute longest of every strap, but the hip braces are way too large and do not provide any support. I asked about exchanging the hip portion onl for a medium, but we since Chewy's doesn't manufacture this item, they couldn't help. I then contacted the manufacturer, but a full business week after sending an email with photos and explanation, I haven't even gotten advice on what to do. This product does not work on dogs that do not have long hips/legs. The straps fall below my dogs knees when he sits/lays, and then the get stuck and impede his walking completely when he stands back up. I could never leave him alone while wearing this for even five minutes. Useless product unfortunately.