I received an underarmour shirt last december as a gift. It's kind of hard to get used to as it is definetly form fitting. I'll have to say though that it allowed me to hunt longer while in the stand and during shotgun, where I cover some serious acerage and sweat like a pig, is where I really see the benefits. It truely keeps me warmer where as without it, once I would stop to sit, being all wet, I would freeze!
I would agree that it is pretty pricey but I have limited time to be in the woods and have to make the most of that time. It allows me to stay in the field a lot longer, therefore, worth the price to me!!
Yours in Health,
Backdoc