The majority of the time I either have a Steyr M9 or a SIG229 IWB. I almost always have an untucked shirt on over a T shirt. I am very fair skinned so I don't mind the extra coverage and even when its hot I don't notice it too much. A Good holster optimized for you will go a long way to helping. I just got back from 4 days hiking around Arches National Park with the Steyr and did just fine. YMMV
p230,
IMVHO, the "secret" to INCONSPICIOUS concealed Summer carry is: the right holster (I have an old DON HUME OWB "Concealer") and the PROPER SIZE untucked golf shirt.
(More than a few times, I've had a LEO ask me why I was NOT armed. = When I said, "I've got a 1911 GM on my belt", they were STUNNED. = TRY ON your golf shirt BEFORE you buy it.)
yours, satx
My go to right now is the Habit fishing shirts that Sam's and others carry. I like the pockets and breathable fly in the back. I will give golf shirts a look though. sometime something a bit "nicer" is needed. Thanks for the suggestion.
80% of the time I carry a P365 The other 20% I carry either a Glock 26 G5 or a Glock 19 G5.I carried a commander sized colt when i worked in colder climates. Closest to full size now-a-days is a Sig P228. I more often carry a P365.
On the topic of dress, some clothes just scream gun. Vests and Hawaiian shirts are a dead giveaway, no matter how concealed you may be
i like the safariland 070 SSIII holster. the holster is just good today than a year ago