Excellent all climate versatile fast-drying merino wool sock. Medium cushion surrounds entire foot and leg, reinforced heel and toe, ankle and arch support. 37.5 active particles supercharge wool's natural abilities by attracting moisture while still in vapor form, before it becomes a sweat droplet. Stay drier longer and increase athletic output. Specifications: Wool 70% Spandex 5% Nylon 25% Point6 has developed direct relationships with merino wool farmers in New Zealand on family-run sheep stations. These farmers hand-select wool for Point6 according to strict fiber specifications.