Full Cushioning throughout this entire sock provides support and comfort without unwanted weight and bulk. Coveted for its dependability and comfort this sock has a smooth performance fit that you won't find in the other guy's full cushioned socks. No slipping, no bunching, no blisters. Fine gauge Merino Wool makes this a fast drying and breathable "all-weather" sock that stays cool in the summer and warm in the winter. And since Merino Wool is naturally antimicrobial this sock repels bacteria and odor - a great feature when you need to get an extra day (or two) out of your socks. Still made in Vermont. Guaranteed for life.