I guess it's good? It works well for what it does but after a little while, it does make you a little bit sweaty though that may be the passport blocking the airflow. I did use the Return Me that came with the belt. It's very thin and doesn't make any kind of noticeable lump when worn. I used it all over Canada, Hong Kong, and China without ever fear of losing my passport and money. The peace of mind was well- worth the price.