Smartwool is known for their high-quality outdoor socks, and their women's PhD outdoor light crew socks are a popular choice for horseback riding. These socks are made with a blend of merino wool, nylon, and elastane, providing excellent moisture management and temperature regulation. The light cushioning offers comfort without adding bulk, while the flat-knit toe seam prevents irritation. Whether you're riding in hot or cold weather, these socks will keep your feet comfortable and dry.