Smartwool Men's Classic All-Season Merino Wool Base Layer — Vans Bottom (Slim Fit), Black Marble Wash, Large at Amazon Men’s Clothing store

Never sacrifice style for comfort again with this go-to base layer, featuring our lightest-weight Merino jersey, plant-based dye, and a classic Vans pattern that will leave you ready for anything, from the sofa to the summit.

SLIM FIT.

Designed to meet the demands of outdoor adventuring, these slim fit bottoms show off a slimming silhouette while offering unrestricted movement through the legs.

Inseam: 31" CLASSIC ALL-SEASON MERINO.

Perfect for 4 season layering and everyday comfort, this ultra lightweight performance fabric blends Core Spun Tech that maximizes durability with the thermoregulation and moisture wicking power of Merino wool.

SUSTAINABLE COMFORT.

Go far, feel good with thoughtful features that keep you trekking comfortably — flatlock seams maximize comfort and reduce chafing while an environmentally conscious plant-based-dye process ensures sustainability with every thread.