I thought I could avoid getting involved in this discussion, but am giving in to temptation.
I have tried numerous different epaulet shirts in the past 11 years. I started out with the Van Huesen Aviatiors, but with the 65% poly content, it was a little like wearing a plastic bag in the summer. The Stop Over Store in MSP used to sell their own brand of 60% cotton broadcloth shirts that I loved. The last time I checked, they had stopped carrying them, though. Lately I have taken a shine to the Wings brand shirts from the Pilot House. They have 60% cotton, feel great, and iron up crisp.
Unless you are a big airplane Captain who never gets underneath an airplane, I would avoid 100% cotton shirts. ANY grease or oil you get on them will be documented forever in the exact place the contact took place. One sweaty summer afternoon will make an all cotton shirt look like you slept in it, as well.
I'm still looking for decent - looking, sturdy, reasonably priced uniform pants. The original Greiff pants I got while at ALG 11 years ago were decent, but the last decent ones I witnessed for eight years. Lion Apparel took over and managed to force us to pay $75 a pair for poorly constructed, guaranteed to shrink, pieces of crap. Finally, at UFS we had uniforms produced by Murphy and Hartelius (M&H), which, while expensive, were great. I have bought several other pairs to replace old ones, but without the company discount I pay like $80 a pair. ATA uses Tally Ho for their uniform stuff. I bought one pair under duress as a new hire - a total POS. The first time I wore them, the azz seam came out of them (and I had lost a fair amount of weight since getting them tailored). Not one reinforced seam, cheesy material, and bizarre fitting. Any info on uniform pants meeting the previously stated requirements would be appreciated.