Smartwool Women's Classic All-Season Merino Wool Base Layer — Long Sleeve Shirt (Slim Fit), Guava Orange Wash, X-Large

4 SEASON BASE LAYER. Spring skiing or summer camping? This base layer is designed for both due to the versatility and temperature-regulating properties of our Merino fabric, enhanced with Core Spun technology for increased durability.

SLIM FIT. Designed to meet the demands of outdoor adventuring, this slim fit long sleeve shirt shows off a slimming silhouette while offering unrestricted movement through the arms and chest.

CLASSIC ALL-SEASON MERINO. Perfect for 4 season layering and everyday comfort, this ultra lightweight performance fabric blends Core Spun Tech that maximizes durability with the thermoregulation and moisture wicking power of Merino wool.

WHY MERINO WOOL? Thinner and softer than regular wool, it's easy to wear next to skin. Each fiber transports sweat away as a vapor, helps cancel out smells (we checked) and regulates body temperature, to keep you cool in summer and warm in winter.

FUNCTIONAL FEATURES. Go far, feel good with thoughtful tech to keep you trekking comfortably — merrow stretch stitching elevates comfort and range of motion while a raglan sleeve design eliminates the need for shoulder seams.