Smartwool Intraknit Thermal Merino Base Layer Crew – Men's Color:Charcoal Black Slip-resistant rubber outsole rated for

Slip-resistant rubber outsole rated for mixed surfaces

energetic toe-off for a snappy

Two zippered handwarmer pockets are harness- and pack-compatible

Built for long days on trail when the weather — and your plans — refuse to stay predictable

Collapsible heel folds flat for easy packing — doubles as a solid travel shoe

Smartwool Intraknit Thermal Merino Base Layer Crew – Men's Color:Charcoal Black Slip-resistant rubber outsole rated forWhen temperatures drop and output stays high, this is the base layer we reach for first. Intraknit construction places denser merino where you need warmth and open mesh where you need airflow no guesswork, no compromises. It layers flat, resists odor through multi day use, and moves without binding. Intraknit technology body maps insulation and ventilation zones into a single knit structure no seams between panels, no bulk Merino wool blend regulates