I'm a pear-shaped, middle-aged woman at 5'4" 150lbs, and usually wear a 6 or 8 in skirts.  Because manufacturers' sizing always varies, I took a chance and ordered the large.  The skirt fits just right.  The waist is comfortable but not too loose or too snug, and the length hits at the ankle.  The material is a bit thin, but I don't mind too much.  It hangs very nicely.  The color is a dark charcoal and goes with almost anything.  I'm very happy with my purchase.