Nordic skiing demands a special kind of toughness. The Hilda Nordic is an Ultra-Light, Merino Wool sock built with the long haul in mind. It's ideal for vigorous winter excursions-from snow shoeing to cross country skiing. True Seamless construction creates a smooth, streamlined performance fit. You'll forget they're even on. And nothing feels better than the warmth Merino Wool provides when the mercury drops. Simply put, it's a great winter sock for any activity. And since Merino Wool is naturally antimicrobial this sock repels bacteria and odor. Always warm, always breathable, always ready to tackle another mile. Still made in Vermont. Guaranteed for life.