icebreaker tech top
I bought the Icebreaker Tech Top for myself this past year. Its very expensive. I want to think its worth it but I havent owned it for long enough. I can say that it works as described in that it hides stenches. For example, I usually stink after exercising, but I wore the shirt three times running then wore it on an overnight camping trip and it never stank at all. It was also definitely warm. So, if you want to splurge, it is worth it. If not, save up for it.