Elsa, I normally travel with my wife and son so we get three hand carry bags but , all three of use vests when travelling. We have quite a collection , everything from the Domkes (for serious gear) to fashion vests . I went to Kashmir with the D700 (with out lens), 24-70 2.8 and 70-200vr 2.8 II all in the vest. Janette always travels to and from the UK with a vest.
So far so good , never had anyone weigh a vest and makes it dead easy when you get to security. Just take the vest off and put it in a tray
![Smiley :)](https://nikongear.net/revival/Smileys/default/smiley.gif)
. Probably would not work on very small aircraft where weight is very closely monitored, ala a Safari or Alaskan seaplane. Janette had her EM1 system in her vest and my new a7II , four lenses, in her hand carry on her more recent return from the UK
![Wink ;)](https://nikongear.net/revival/Smileys/default/wink.gif)
.
Just a thought , works for us.
Cheers,
Tom