The socks are warm when worn and have elastic at the top of the sick which reach just above the ankle. The label states made of wool and they appear to be an acrylic blend. They can be washed in the washer and dried in a cool dryer. Each pair has a different fair isle design. They are stretchy and should fit women with average size feet as well as most men. Appear to be well made. Beautiful and should be great for winter!