Get a chic upliftment for your shoe layering by adding Columbia Hike Crew Medium Weight to your collection. Crew socks. Omni-Heat reflective lining is a metallic lining that reflects body-generated heat for improved warmth retention without added bulk. Balance Point cushioning in the heel and Achilles area help provide comfort with minimal bulk. Ribbed cuffs. Seamless toe. Geometric paneling. Branding at the front. 55% merino wool, 24% nylon, 19% polyester, 2% spandex. Machine wash, dry flat.