Inspired by the fierce, changeable and challenging conditions on the Valta mountain of North East Finland, UpHillSport “Valta” Alpine Ski 4 Layer M5 Socks are knee-length multilayer socks perfect for the cold conditions encountered during Alpine skiing and snowboarding. The mid-weight socks have a thermal grade of 5, preventing risk of frostbite. The multilayer structure, including merino wool, holds warm air inside while simultaneously transferring moisture away from the legs and feet, and drying fast to keep skin dry. The foot section is cushioned in the sole with Merino wool, has a fitted heel and a grip in the arch for both support and to keep the socks in place without unwanted wrinkling. A seamless toe is used to prevent blisters. All UphillSport socks incorporating merino wool come from mulesing free farming sources.