TSA staff in PreCheck always tell me not to worry that I take my belt, but of course I used to always run a metal detector. When you start something, they often want to take you aside and search you. I don't wear fancy belt buckles or anything like that. I had no problems with this belt as I didn't have any metal. The belt is durable and comfortable when clothes are tucked into it. The buckle mechanism works well as you simply thread the belt through, tighten, and then pull the belt through to secure it. Now I've found that the sides scratch my skin when my shirt isn't tucked in. However, I only use this belt on the days I fly.