MERIWOOL Women's Base Layer 100% Merino Wool Heavyweight 400g Thermal Shirt New With Tags Color: Black Size: Medium 100% Merino Wool Pull On closure Machine Wash 400g/m2 | FIT: Fitted SUPER SOFT: 100% all-natural superfine 18.5-micron Merino wool ensures comfort all day – no itch! EASY CARE: Heavyweight long sleeve crew top shirt is machine-washable and dryer-safe, so it’s ready when you are for your next adventure. 400g OF WARMTH: Our most popular 250g midweight crewnecks just got an upgrade! Take your warmth to the next level with our new 400g heavyweight crewneck tops. The perfect base or mid-layer for cold to freezing conditions makes these thermal tops our warmest and thickest base layers yet! COMFORTABLE & CONVENIENT: These quick-drying shirts with a UPF Rating of 50+ are perfect for your next trip, whether camping, hiking, hunting, playing sports, skiing, or partaking in any outdoor activity. WICKING & ODOR RESISTANCE: Merino wool’s natural wicking and odor-resistant properties keep you dry and comfortable while active in cold weather. Through the process of wicking, Merino wool is the most breathable fabric and absorbs moisture better than any other fiber. Wicking refers to a fabric’s ability to pull moisture away from your body and keep you comfortable.