Feeling a little chilly? So were the makers at Woolpower, a company located just a couple hundred miles from the Arctic Circle. That's why we trust the brand when it comes to performance gear. The LITE Tee is one of the most functional base layers around. The top is made from superfine 19.5 micron merino wool and polyamide fiber, creating a strong, durable garment that's smooth, stretchy, and odor-resistant. It features a minimal seam design, raglan sleeves, a longer back, and material that's great for any athletic pursuit since it adapts to your temperature and activity level to keep you warm without overheating.