Outdoor Research Echo Boxer Brief – Men's long-sleeve and Black Sea colorways

and Black Sea colorways

XT-900 rubber in high-wear outsole zones adds durability where you actually need it

550-fill goose down keeps the cold out while the recycled ripstop upper stays packable and durable

the Vesper is our pick for active hikers and campers who need packable warmth without the bulk

and quick-drying — built for sustained output in heat and humidity

Outdoor Research Echo Boxer Brief – Men's long-sleeve and Black Sea colorwaysFor high output days on trail, track, or in the backcountry, the Echo Boxer Brief is our pick for athletes who refuse to let their underwear slow them down. Fast drying, moisture wicking stretch fabric pulls sweat away and moves with you, so chafing and bunching stay out of the picture. A low profile waistband sits flat under shorts or base layers without rolling or digging in. Moisture wicking fabric pulls sweat away fast critical for Southern heat