Depends on what you carry really.
Somethign really small COULD be held nicely in your cargo pants pocket, just don't go jogging

Seriously though, if your carrying something
little very few situations would call for you to run. We are not talking Sit-X and NWO stormtroopers, just loonies at the mall or a hold up at 7-11. I
am thinking liek a littel .22 revolver or even that little 9mm Kel-Tec makes.
I used to carry my charter arms underover in my cargo pocket.
Since then I switched to a small 1911 type .45acp. Very flat and short (single stack, 3 inch barrel) so I carry in a in waistband holster at the small
of my back. I don't tuck my t-shirts into my shorts so for summer time it's great!