Simms Men's Merino Midweight Hiking Socks - Merino Wool is exceptional for performance outdoor wear because the fabric is excellent at regulating body temperature by keeping you warm on cold days and cooler on warm days for all season comfort whether you are in town or in the mountains. Naturally wicking and odor resistant Cushioning in high-impact areas Over-the-calf height Made in USA 66% merino wool, 31% nylon, 3% Lycra® spandex Style: 13142