I focus onGet off the t-shirts shtick. Go to Academy or some similar store and you can find very long and light weight outdoor shirts that are inexpensive. Look at Magellan's line. Plenty of folks drive around all day with OWB and a cover shirt. Don't cabs have AC, so you won't die of the heat.I find some long enough T-shirts
Now, I typed long t-shirts into Amazon and guess what, there are lots. Now, they are described as for hipsters. Not that there is anything wrong with that.