The Polar Extreme insulated thermal socks keep your feet warm and comfortable during the extremely cold winter weather. Color: Wine ~ Other colors available in my closet. Fits Shoe size Women's 5-9 Women's sock size 9-11 Details: Warmth - the yarns used have excellent thermal properties and when combined with our specialized manufacturing techniques, the result is the super warmest thermal sock. Comfort - you deserve comfortable crew socks and these are them. Just feel the inside of these heavily brushed-lined socks and you can imagine how comfortable they will be on your feet. Performance - with the inherent moisture management of these socks combined with the thermal properties the result is a fantastic performing sock: the warmest thermal sock imaginable. Care: Machine wash cold with similar colors Use non-chlorine bleach when needed Tumble dry low Do not iron