Smartwool Classic Thermal Merino Base Layer 1/4 Zip – Men's running 8 oz — light enough

8 oz — light enough to carry as a safety layer on long trail runs or backcountry hunts

and fit stability all matter on the clock

while the Early Meta-Rocker keeps your transitions smooth stride after stride

When the plan is yoga

and fights odor between washes

Smartwool Classic Thermal Merino Base Layer 1/4 Zip – Men's running 8 oz — light enoughBuilt for cold weather output hiking, hunting, or moving fast in the backcountry this midweight merino base layer handles the full range of Southern winters. Merino wool regulates temperature naturally and resists odor through multi day wear, so you stay fresh without extra weight. The 1 4 zip lets you dump heat fast when the climb gets steep. Midweight merino wool construction balances warmth and breathability across a wide range of cold weather