I am the tallest of men, almost as tall as NBA Shaquille O'Neal, but thicker. Came and fit well. Wearing comfort is ok, but wearing the watch (FitBit) annoys me. You won't lose your wallet. I have a triple wallet full of cash (actually promissory notes). And it fits. This is a good product. It's easy to attach. It's not easy to get the wallet out when it's on the leg, but oh well.