The Kari Traa Vilma Half Zip is a 100% merino wool baselayer that keeps you warm even when its wet. Smooth and soft, the Vilmas Jacquard knit pattern evokes snowfall, while stretchy underarm panels allow unrestricted movement. The zip neck lets you adjust to variable weather. With a slim fit, raglan sleeves, and a high collar, the Vilma is a warm baselayer for cold winter days.