[mikimm]

Fidogear is where I get my harnesses for carting. They custom make them according to your dog's measurements. If your dog is just 7 months though, he's going to get thicker and may need a larger size later. If you let these guys know that, they may be able to build in enough adjustment room for you. They are great to work with. When I ordered a Great Dane harness, they called me to clarify the measurements that I made so that it would fit him properly with his tall, long, and narrow proportions.