I've used this recently during a 10 month trip in about 20 countries. I wore this about half of the time I needed to use an airport because the big hidden pockets are convenient for holding I need for the flight. You can fit a lot of things in those pockets and it isn't noticeable. Maybe it would be noticeable if you were wore of those guys that wears your shirt tight. A couple times people mentioned how cool my shirt is when they see me pull out a bunch of stuff from my shirt. I also like clothes like this when I am in an area that I am worried about pick pockets.