The Smartwool Men's Merino Sport 150 Long Sleeve is a lightweight performance top built from 150-weight merino wool for comfortable, year-round wear. Designed for active use, this piece balances natural temperature regulation and breathable moisture management so you stay comfortable whether you're pushing hard or cooling down. Color: Charcoal Heather / Golden Olive. Size: Large.

• 150-weight merino fabric: lightweight next-to-skin feel that works well as a baselayer or a stand-alone piece.
• Natural odor resistance and breathability to help keep you fresh during extended activity.
• Moisture-wicking and quick-drying performance for reliable comfort as intensity increases.
• Thoughtful construction to minimize chafing — flatlock seams and low-bulk finishes that reduce irritation under packs or layers.
• Designed for movement: articulated sleeve lines and an active-friendly cut that layers easily under outerwear.
• Versatile for running, training, hiking, skiing, travel, and everyday use.

Built to perform and made for comfort, this long sleeve pairs the natural benefits of merino wool with smart design details so you can stay focused on the activity, not your kit. Follow the garment care instructions to preserve fit and performance over time.