Classic All-Season Merino Base Layer Bottom - Iron Heather

Smartwool

$100.00
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Designed for year-round adventures, this men's long sleeve base layer delivers lightweight warmth, breathable comfort, and dependable performance in any season. Soft Merino wool naturally regulates temperature and resists odors, while the slim fit layers comfortably beneath outerwear without restricting movement. Whether you're hiking, skiing, camping, or backpacking, it's built to keep you comfortable all day.

  • Lightweight Merino wool helps regulate temperature and resist odors
  • Slim fit layers comfortably under jackets and outerwear
  • Flatlock seams and offset construction help reduce chafing
  • Durable construction with Merino wool next to the skin for lasting softness
  • Ideal for year-round layering during outdoor adventures