SockGuy Women's Bunny Quick 1" Socks Microdenier acrylic, nylon and spandex fabric blend provides optimal moisture management, breathability and stability Superior softness and comfort helps eliminate blisters and hot spots Mesh upper for supreme airflow Double-stitched heel and toe add strength and durability Stretch-to-Fit sizing system and exclusive Easy-Fit cuff for a perfect fit every time on any foot