Like the other person said, 5x growth is overall, meaning length and girth. Some people grow more than others. The guys walking around without clothes at the gym are typically the more confident guys, meaning the guys who are more endowed. As someone who played sports for half his life, and was in the Army, I've seen a lot of dongs, and they're all over the place. They seem to vary from 1/2" to the biggest I've ever seen which was an enormous 11" monster. The average flaccid just based on personal observation is 2-3 inches, so still not really something you need to worry about when getting your pants tailored. But if you're a guy, then you know that your flaccid size varies greatly depending on a number of factors.