Men’s Performance Fit Merino Wool Long Boxer Briefs

We made our Performance Fit Long Boxer Briefs with a longer inseam for those who prefer more coverage. These boxer briefs are a great first layer whether you’re trail running, skiing, or just hanging out at home. The fly is often removed in performance underwear, but not in these. The horizontal fly offers both convenience and full lateral support.

These super soft underwear put Merino wool against your skin, and our (m)Force™ Technology improves the wool’s strength and reduces abrasion. A hint of spandex is added for stretch and recovery. All of our underwear are odor-resistant, quick-drying, temperature-regulating, and moisture-wicking, plus they’re free of chemicals and microplastics, meaning you’re making the right choice for yourself and for the planet.

"We’ve tried a number of Merino long boxer briefs, and none bested [these] in terms of backcountry comfort." - Adventure Alan & Co.