Classic Thermal Base Layer Crew

The Smartwool Classic Thermal Merino Base Layer Crew (Men’s) delivers the kind of warmth that doesn’t overheat, doesn’t itch, and doesn’t stink. Made from 100% Merino wool with an interlock knit, it traps heat, moves moisture, and regulates temperature naturally — whether you’re skiing, winter hiking, or grinding through early-morning training in the cold.

Updated shoulder panels remove top seams. Flatlock stitching prevents rubbing. The slim fit layers cleanly under midlayers and shells without bulk.

Warm, breathable, comfortable — and ready for real winter.

Key Features

• 100% Merino wool for warmth, breathability, and odour resistance
• Interlock knit for soft next-to-skin comfort
• Slim fit layers easily under jackets and midlayers
• Flatlock seams reduce chafing during movement
• Seam-free shoulder panels improve comfort under packs
• Updated fit improves mobility and overall feel

Specs

• • Fabric: 100% Merino Wool
  • Construction: Interlock knit
  • Seams: Flatlock anti-chafe
  • Fit: Slim
  • Garment Weight: 276 g
  • Model: SW016350
  • Country of Manufacture: Knit in Vietnam