The Kari Traa Olea Long Sleeve is a baselayer shirt made from 100% merino wool, with a close-to-the-skin fit that holds warmth in on cold days. A Nordic pattern adds style to a layer that suits any winter wardrobe. What Our Gearhead(R) Experts Are Saying:"I wear this from the cold first chair through the warm afternoon, and the merino stays comfortable after I've worked up a sweat and shed a layer."