🔥 Elevate Your Adventure with Smartwool! Machine washable for easy maintenance, keeping you fresh on the go. Midweight insulation ideal for all seasons, from chilly mornings to brisk evenings. 10in mock neck provides flexibility and style without compromising on comfort. Sleek slim fit with a trendy 1/4 zip design for a modern look. Crafted from 100% Merino wool for unparalleled comfort and warmth. 27.5in Length 100% Merino Wool Midweight (250g/m2) The Smartwool Men's Merino 250 Pattern 1/4 Zip Base Layer is a premium base layer made from 100% Merino wool, offering midweight insulation and a stylish slim fit. With a convenient zipper closure and machine-washable fabric, this base layer is designed for both performance and ease of care, making it the perfect choice for active lifestyles.