I have turned my mother into a wool weenie. I have been telling her for months about the awesomeness of merino wool, so today she picked out a nice Smartwool 1/4 zip top. In the car, on the way home, she kept rubbing the wool and saying, "Oooh that is so nice and soft. It isn't itchy at all. I am so excited."

And +1 on the ventilation.