These are the socks that keep feet dry using patented technology that moves moisture away from a foot and out of each sock. They are constructed with a patented three-zone system that absorbs, transfers, and evaporates moisture. Made from a blend of Merino and Alpaca wools--two of the softest natural fibers available--the heel and toe in each sock absorbs moisture. Alternating channels and rings of Merino/Alpaca and recycled polyester built into the top forefoot and around the midfoot wick and transfer moisture from the heel and toe faster and more efficiently than cotton, synthetic, blended, or traditional wool socks that require a sock liner. Moisture is then evaporated by a poly/Merino blend at the ankle. A flat-knit toe seam keeps toes free from blisters while the y-knit, contoured heel provides a comfortable fit. Includes a pair of Black and a pair of Brown socks. Made in the U.S. Sizes M (Men's 51/2-8 1/2; Women's 7 1/2-10 1/2), L (Men's 8 1/2-10), and XL (Men's 11-13). (1 oz.)