I have a bunch of them.  My favorite is actually Magellan, though the Magellan you have to watch some are cotton.  The synthetics, I like better than my Columbia or Guide Gear.    

Yep, I'm not a big fan of Underarmor "Ts" either but I like the material.  One of the smartest things I ever did was buy a crap load of Mil Surplus "T" shirts, the new Khaki synthetics.  They're a lot more comfortable and nowhere even close hold the smell like Underarmor base layers do.  

Everyone should just keep in mind, a label isn't going to do anyone any better.  Its a matter of material and construction.  $40 for something that's going to stink so bad you have to throw it away after about the seventh time you wear it, is pretty darn expensive.  

Tj    

Oh you can get the smell out, its just coming back its ten times faster.  These MIL blend "T"s do a lot better.  

BTW, If you all are UA fans, Cycle Gear has had their version, same material about the same weave and thickness, on sale for $10.  Personally I like old school cotton for bikes.  I like it to be cold when wet and take longer to evaporate.  Highway speeds are a lot of wind.  Otherwise, those would make excellent field undershirts.  

Tj

To answer your question, that's about all I wear these days as field shirts.  I really like the concept of the roll up sleaves, which btw Columbia wasn't first.  I have a number of cotton old canvas type hunting shirts, a lot thicker and more durable than these modern shirts.  They are kind of are like the old MIL Kahkis from the Vietnam era.  I have quite a few of those which the only brand I can think of off hand is Duckshead because they got the damn duck on them.  Those do pretty well, they have a heavier feel to them, definitely tougher,  breathe, and water resistant, but honestly companies like Magellan make shirts out of that material too.  

What's neat about these new field shirts isn't really the material, that you can vary, Columbia, Guide Gear, Magellan, all make different materials.  Its the design, they have pockets and loop hangers that even my expensive hunting shirts with padded shoulders don't.  They're the cargo pants/shorts of shirts.  These things vary a lot depending on application to include water proofing, insect repelling, all kinds of options.  Magellan uses a flip card option that tells you which of their material features you are buying even.  

Yeah, they kind of look like you are Stanley on an African Safari but they are damn fine field shirts, very practical.  

Tj