You are right, it's CARGO SHORTS and
Guayabera shirt (Tall sizes for length, from Big/Tall seciotns of the stores) weather. I have both zippered and button shirts, buttons are better so you can leave bottom buttons unbuttoned.
I usually tuck a bunch of kleenexes in one lower front pocket of the shirt to make a kleenex bulge and leave a bit of that "hanky/handkerchiif" sticking out ... most people notice my shirt bulges and look away ... who wants to stare at Kleenex? I may have a wad of keys or something in the other lower shirt pocket ...
I have bulges everywhere (intenionally) ...
Like the magician .... watch this hand (don't look at the other)
I use IWB, MTac or Comfort Carry (with horsehide liner) or solid Kydex if I plan to sweat profusely or go swimming.
Backup Gun in Cargo pocket in the shorts in a pocket holster.
(not me in photo, but see shirt)
Even some young skinny guys can wear them (not me in photo)
![Image](http://guayaberashirt.com/shop/images/guayabera%2013.JPG)
OHHHH So that's what that bottom side vent button is for
![Wink ;-)](./images/smilies/icon_wink.gif)
(not me in photo)
Guayabera shirts (a/k/a Cuban Wedding Shirts, designed for an armed society [in HOT weather Cuba/Florida climates]) (not me in photo)