Our best-selling HaliBorealis Socks are a unique blend of 70% Polyester, 10% Cotton, 5% Spandex, 5% Elastane. The soft fabric makes these socks comfortable to wear while you’re lounging around the house or out on the town. Made in the USA. These fun socks are one size fits most, unisex and feature the Alaskan Inspired Halibut design.