Smartwool Men's Classic Thermal 250g Merino Baselayer Bottom Black 173696 which keeps it catch free

which keeps it catch free and forgiving

Integrated grow system

The Alpha is our premier backcountry jacket in our theorem collection

COMFORTABLE AND DURABLE

As one of Smartwool's heaviest base layer tops and best base layers for cold weather

Smartwool Men's Classic Thermal 250g Merino Baselayer Bottom Black 173696 which keeps it catch freeWarmest weight 100% Merino wool delivers consistent insulation with natural moisture management, temperature regulation, and odor resistance, all built into a smooth interlock knit that stays comfortable during high output days. Flatlock seams reduce friction, while a Merino lined elastic waistband maintains soft, secure comfort under packs and shells. Cut with a slim, body hugging fit, the Smartwool Mens Classic Thermal 250g Merino Baselayer Bottom