Smartwool Merino 250 Base Layer 3/4 Bottom – Men's

Built for cold mornings on the stand or the trail, the Merino 250 3/4 Bottom is our go-to base layer for hunters, hikers, and runners who want warmth without bulk. 250-weight merino regulates temperature as your effort changes and resists odor over long days, while the 3/4 length tucks cleanly under gaiters and bibs.

• 250-weight merino wool gives you real warmth without the bulk of heavier synthetic base layers
• Regulates temperature as your effort and the conditions change, so you stay comfortable climbing, glassing, or sitting still
• Natural odor resistance holds up through multi-day hunts, long hikes, and cold-weather runs
• 3/4 length stops above the boot cuff, so it layers cleanly under gaiters, bibs, and pants
• Low-chafe construction handles high-output movement without hot spots; available in Black, sizes S–XXL