evo.com | Burton Long Underwear Bottoms > The Burton Merino Blend Midweight Base Layer Pants bring low-profile warmth and next-to-skin comfort to cold days. A soft merino wool and TENCEL(TM) blend naturally regulates temperature and resists odor, while four-way stretch and a gusseted crotch keep movement unrestricted. The result is a warm, breathable layer that slides easily under snow pants and stays comfortable long after the last run. Next to Skin Fit Stretch 360deg For Unlimited Mobility Midweight Wool 245GSM 57.6% Merino Wool, 38.4% TENCEL(TM) Lyocell, 4% Spandex. Double Needle Stitching on Sleeves and Hem Chafe-free Softlock Seams for Comfort | Women's Burton Blend Midweight Base Layer Pants 2027 - Large Blue | Spandex/Wool