ROTOTO's signature Double Face Crew Socks take inspiration from classic mountaineering socks, utilizing a specialized two-layer knit for exceptional cold-weather comfort. Crafted in Nara Prefecture, Japan, they pair an insulating merino wool exterior with a plush, napped organic cotton interior that feels like a soft sweatshirt against the skin. Thick, cushioned, and naturally breathable, they are an elevated cold-weather staple built for boots and everyday footwear alike.