NIGHT TRAIL Men's Socks Mountaineering Hiking Outdoor Merino Wool Antibacterial and Odor-Resistant Treatment Silver Ion Treatment Size: 25-27 cm Thick Socks Made with Merino Wool Merino wool is wool from Merino sheep raised in New Zealand and Australia. It has fine fibers, a natural temperature regulation function, and excellent moisture absorption/release and heat retention properties. The thickness of the pile provides excellent cushioning, softening direct damage to the feet and the impact on the feet, and protecting the feet from rubbing against shoes. Designed for moderate support (less likely to slip) and good breathability (less likely to trap heat). The properties of wool & silver ion antibacterial and odor-resistant treatment make it less likely to smell even after long-term wear. The packaging will be folded to save on shipping costs.