Ibex Woolies Pro Tech Crew Ibex's lightest weight base layer ever, perfect for most cool and cold conditions. Nuyarn® is a spinning technology that makes merino 35% more thermally efficient, 85% more elastic, and 8.8x more durable than its ring-spun counterparts Raglan sleeves, flatlock stitching, and thumbholes to excel at any activity Odor-Resistant Wear: Embrace your active lifestyle with confidence. The anti-bacterial properties of merino wool keep unpleasant odors at bay, even during the most rigorous activities. Thermoregulating Fiber: Experience optimal comfort in varying conditions. The tank's thermoregulating fiber properties adapt to your body's temperature, providing warmth in the cold and keeping you cool when it's warm. Features Nylon Core for Durability Raglan Sleeve Allows for Extra Movement Flatlock Seams Reduce Chaffing Thumbholes for Easy Layering Under Midweights and Gloves Fabric Origin: Australia Garment Origin: Vietnam Fit & Sizing FIT: Next to Skin LAYER: Base Layer LENGTH: Center Front Length - 25.875" (Size M) Content & Care 85% Merino Wool, 15% Nylon Machine Wash Cold Do Not Use Fabric Softener Do Not Bleach Line Dry Cool Iron if Needed