This is a set of two items. While there is no abrasion on the knees, and they appear to be in good condition, there is some pilling and fuzzing from wear. One is a thin, regular HEATTECH, and the other is EXTRA WARM, which is a bit thicker. I used to wear them under my child's gym clothes at nursery school in the winter. - Color: Black - Material: HEATTECH EXTRA WARM - Style: Spats EXTRA WARM Spats Extra Warm Thank you for looking.