I have carried a J-frame in the pocket before. It was so light and comfy at times I'd even forget I had the gun on me. And I hated carrying my Glock 19 IWB because I had to use thick belts and holsters and it would still print and be uncomfortable
But now I found a very comfy AIWB holster and carry method for my Glock 19, and I also dress like a man now with loose clothing, so I can conceal well in summer and in winter. Only females wear tight clothing so they have to carry in purses
If I wanted to carry while using tight athletic clothes while going out for a run I'd just use picrel minus the tacticool color. I have one in light blue