The Karrimor Merino Fiber Heavyweight Hiking Socks are ideal for trekking and mountaineering, thanks to the heavyweight Merino Wool blend construction with temperature-regulating Coolmax fabric. Men's hiking socks. 1 pack. Coolmax temperature regulating fabric. Comfort fit cuff. Merino Wool. Full Terry construction. Flat toe seam. Antiodr antimicrobial odor management. Men's shoe sizes 13+. 45% Merino wool 22% Coolmax 30% nylon 3% Lycra. Machine washable. Imported.