Feetures! Men's Elite Merino+ Cushion No Show Tab 37% Rayon, 34% Wool, 26% Nylon, 3% Spandex Imported Pull-On closure Machine Wash EXTREME COMFORT: Our Elite Merino+ socks combine our Elite technology with our unique blend of super fine merino wool and silky soft rayon from bamboo as well as a seamless toe that provides truly unsurpassed comfort. HIGH DENSITY KNITTING: High density knitting results in lightweight cushion. TEMPERATURE CONTROL: Merino+ fibers wick moisture to keep feet dry and odor-free. These socks insulate when wet which keeps feet warm in cool and damp conditions. ANTI-ODOR: Our Merino+ fibers have natural anti-odor properties, perfect for any athlete. LIFETIME GUARANTEE: Feetures! stands behind the quality of their socks and wants you to have a great experience with every product they make. If at any point you are unsatisfied with one of their products, you may return it for a replacement or a refund.