I was in the marine corps and went from 117 to 155. I had really good gear quality vet and denkal. I also had some gear I got in spain. I ate like a pig. But we ran every day and I pounded weights also. I don't know how I did it at all. I had it checked a lot by calipers. This was back in 2002. I've had good gear since but nothing has compared to the shit back then. I would never want to be that lean unless hitting a contest