Cable & Guage. Tag lists size medium, but im a xsmall and wore it as a dress with thigh high boots. Can fit up to a large, really just depends on how you want to wear it. The blue of this sweater is truely breathtaking. Pictures do not do it justice. I offer discounted shipping on most of my products. Please feel free to ask any questions or send me an offer. Bundle with any other item in my closet for big savings!