An incredibly warm merino wool base layer for the coldest months of the year, the Merino 260 Tech long-sleeve turtleneck is a layering essential, perfect for skiing, snowshoeing and winter adventures. Crafted from odor-resistant 100% merino wool jersey that offers quality softness, insulation and breathability, the 260 Tech is a warmer version of icebreaker's popular Oasis model. Underarm gussets increase range of motion, while flat and offset seams provide next-to-skin softness. Inspired by nature, icebreaker harnesses the performance qualities of natural fibers and offers an alternative to garments made from petrochemical synthetic fabrics. Merino wool is an annually renewable fiber that naturally resists odors, keeping you cool when it's hot and warm when it's cool. Plus, it lets your skin breathe comfortably all day, every day.