The ultimate thermal essential, Smartwool Classic Thermal Merino Base Layer One-Piece. Crafted with slim-fit contours that follow your body's natural shape, this one-piece features a mock neck and long sleeves for full coverage without bulk. The interlock-knit merino fabric excels at moisture management, temperature regulation, and odor resistance, ensuring all-day freshness. Thoughtful design touches like flatlock seam construction minimize chafing, while set-in sleeves and side seams wrapped to the front provide a distraction-free fit for every adventure. Need convenience on the go? The zippered drop seat with a fully functional fly adds practical functionality without sacrificing comfort. 100% Merino wool. Machine washable.
Product details
- Department : mens
- Date First Available : October 31, 2024
- Manufacturer : Smartwool
- ASIN : B0DLKBM837
- Product Warranty: For warranty information about this product, please click here
- Best Sellers Rank: #2,733,281 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry)
- #1,325 in Men's Base Layers




