The Smartwool Snowflake Flurry from Smartwool's Holiday Collection features medium-density cushioning, high Merino content and uber-fashionable graphic knit. The pattern harkens back to heritage socks of the past but has all of the modern benefits of premium Smartwool Merino Wool. It is anti-microbial and moisture-wicking. The mid-calf length sock is made of 82% wool, 17% nylon and 1% elastane. All Smartwool socks are proudly made in the USA, and carry a lifetime guarantee.