The twin-pack of Peter Storm Unisex Multiactive Coolmax Liner Socks come in extremely handy when the temperatures sink massively, or when you're breaking in new walking boots and you need that little bit of additional foot protection.And these superb liner socks do just that and more as they have been created using Coolmax technology that not only helps provide great warmth, but they also help draw moisture away from your skin to keep it fresh and cool.Combine that with the antibacterial finish and these liner socks are almost certain to keep your feet in tip top condition no matter how far you hike.Fabric: 71% COOLMAX, 27% Nylon/Polyamide, 2% Lycra