Primaloft polyester yarn offers the best thermal performance to weight ratio in a wide range of temperatures Calf Height – 18cm/7in with seamless toe construction Fabric Content: 45% Polyester, 25% Polypropylene, 25% polyamide, 5% elastane

Our Primaloft Lightweight Socks use Primaloft polyester yarn to keep feet warm in a variety of temperatures, all without overheating or becoming excessively bulky.