This shirt is the single most beautiful piece of clothing I have ever owned! Granted, I sorta snapped at the cost, but after doing some research I learned that Icebreaker stuff is worth it. I have worn it riding lifts/telemarking and in the backcountry and track skiing and it is magnificent! The thumb holes RULE! They make my hands so warm I can get away without wearing gloves a lot of the time. And the hood makes wearing a helmet WORK for me. It completely eliminates the cold neck thing. I am fully amazed by this shirt! I LOVE IT! I've worn it 24 days without washing it, too. Try that with synthetics! Pound down the fundage and buy one of these. . . THEY ROCK!