Smartwool Merino Boxer Brief Boxed – Men's Color:Mineral Blue while the engineered mesh upper

while the engineered mesh upper keeps airflow moving — something you'll appreciate on a humid Southern summer run

An organic cotton blend gives it a soft

or all-day casual wear

so you stay warm even if moisture creeps in

A 550-fill goose down body pairs with Heatseeker Eco synthetic insulation at the shoulders and cuffs

Smartwool Merino Boxer Brief Boxed – Men's Color:Mineral Blue while the engineered mesh upperFor everyday wear, trail days, and everything in between, these are the underwear we recommend to guys who want to stop thinking about their base layer. Merino wool naturally regulates temperature and fights odor without any chemical treatment, so they hold up mile after mile and wear after wear. Flatlock seams and a wide elastic waistband keep things locked in without chafing. Merino wool blend wicks moisture and resists odor naturally no synthetic