The ASICS Kayano Single Tab Running Socks are highly rated for women's ultrarunning. These socks are made from a blend of synthetic fibers that offer excellent moisture-wicking properties and breathability. The single tab design provides ankle coverage and prevents the socks from slipping down while running. The cushioned sole offers extra comfort and impact protection, making them ideal for long-distance runs. These socks have a seamless toe closure that eliminates the risk of blisters and irritation. The ASICS Kayano Single Tab Running Socks are known for their durability and performance, making them a reliable choice for ultrarunners.