Kyril: A nonwhite undershirt sounds like a good idea. All I have right now are tons of white undershirts, guess I need to do more shopping soon...
insideontheoutside: Well the problem with my binder being an "undershirt" is it's the tritop underworks style binder and I cut off a few inches off the bottom of my old one (I need to buy more tritops soon, this everyday one is getting ragged), so I'm afraid it looks more like a "sports bra" type thing than an "undershirt". I had to cut it off because I have a gut and it kept rolling up on me and pulverizing my rib cage. I haven't tried the full compression binder from underworks that some people rave about, and I suppose it would better serve the purpose of being an "undershirt" (if only I had the money right now). As for a track jacket, I don't know. I'll consider it a possibility, but seems like a lot of layers for the summer still to wear a light jacket over everything I wear now (in the spring here it's already gotten up to 70-80 degrees F, in the summer it can get to 110 F).
Andrew: Cool, I'll keep an eye out for high thread-count white shirts in the future then.