Par Avion Check Skirt - Autumn/Winter I'm not sure what the fabric is, but it's a slightly thick material. The size is free size. This is a skirt I bought a while ago, and I've worn it several times, so it shows signs of wear. Also, the button on the waist is a little loose. Please purchase only if you understand these points. Color: Black Skirt Length: Knee-length Season: Winter, Autumn Silhouette: Tight