The Lasting WLG hiking socks work well not only for trekking but also for everyday use. Wear them on their own or over thin liner socks! The generous amount of merino wool maximizes all the benefits of merino: the material requires far less washing than synthetics, keeps you warm even when damp, and helps regulate temperature fluctuations. - Naturally antibacterial - Stretchy, pleasant, and comfortable - Merino fibers are smoother than regular wool and itch only very rarely - A small amount of polyamide adds durability - Elastane adds stretch - Reinforced heel and toe - Sizes: - S = 34 - 37 - M = 38 - 41 - L = 42 - 45 - XL = 46 - 49