Smartwool didn’t just make a better sock; they started a revolution. Founded in the Colorado Rockies by ski instructors who were tired of cold, wet feet, they were the first to prove that Merino wool is nature’s original performance fiber. By reinventing the way we use wool—making it softer, stronger, and machine-washable—Smartwool created a brand that lives at the intersection of extreme mountain performance and everyday cozy comfort. From the legendary Classic Hike sock to their targeted Intraknit™ base layers, they help you stay outside longer, no matter what the thermometer says.