Amazing service from the team! We have a very small collie, so finding a harness that fits has been a struggle. In particular, we needed a harness that was very narrow in the chest area so it didn't rub her armpits. I didn't want to just keep buying endless cheap ones with the hope of finding one that fit better, so I got in touch with PerfectFit. They asked me to send photos and suggested the sizes they thought would be best. When one part looked a bit small, they sent out a replacement at no extra cost and said we could keep trying till we found the right configuration. Would definitely recommend them if you're looking for a bit more customisation or need a non-standard size harness.