2026 Men's Classic Thermal Merino Base Layer Crew

Men's Classic Thermal Merino Base Layer Crew by Smartwool

Embrace the cold with confidence in Smartwool's fan-favorite Men's Classic Thermal Merino Base Layer Crew, now reimagined with fresh colors and an optimized fit. This isn't just a layer; it's your essential winter upgrade, meticulously crafted from 100% premium Merino wool. From carving fresh powder to scaling new heights, or simply enjoying a brisk hike, you'll feel the unparalleled difference in warmth, comfort, and performance.

• Experience Unrestricted Movement: Our refined, slim fit not only looks sharp but is engineered to move with you, providing sleek, comfortable layering without bulk.
• All-Day Comfort, Naturally: Immerse yourself in the luxurious feel of 100% Merino wool, featuring an advanced interlock knit. This powerhouse fabric naturally regulates your temperature, breathes with you, and resists odors, keeping you fresh and comfortable from dawn till dusk.
• Enhanced Durability & Aesthetics: We've fine-tuned the fit to deliver superior functionality, ensuring seamless integration into your active wardrobe while boosting its visual appeal.
• Chafe-Free Design: Say goodbye to discomfort. Thoughtfully designed shoulder panels eliminate irritating top shoulder seams, and our innovative flatlock seam construction minimizes chafing, letting you focus entirely on your adventure.
• Lightweight Warmth: At a nimble 276g (9.74 oz), this base layer provides exceptional warmth without the heavy feel, allowing for agile movement and easy packing.
• Quality You Can Trust: Expertly knit in Vietnam, each garment reflects a commitment to high-quality craftsmanship and enduring design.

Elevate your winter experience with the Men's Classic Thermal Merino Base Layer Crew by Smartwool. It’s more than warmth; it’s your secret weapon against the elements, transforming every outdoor pursuit into an exceptional one.