Nordic skiers-they're not big complainers and neither is the Sven Nordic sock. After all, skiing a 50k Nordic race requires a special kind of toughness. The Nordic Boot is an Ultra-Light, Merino Wool sock built with the long haul in mind. It's ideal for vigorous winter excursions like snowshoeing and cross-country skiing. And since Merino Wool is naturally antimicrobial this sock repels bacteria and odor. Simply put it's a great winter sock for any activity. Always warm, always breathable, always ready to drop some K's. Still made in Vermont. Guaranteed for life.