I usually wear a medium and purchased an XL so the skirt would "skim." The skirt fits as I had hoped. I am a special educator and am moving (walking, jogging, bending, twisting, kneeling, squating) all day long and find this skirt to be EXTREMELY COMFORTABLE.The fabric is similar to a "scuba knit" you might purchase at a deparment store, is smooth, has a nice sheen to it, stretches well, and has held up to multiple washings (hand-wash cycle on my washing machine; I usually hang-dry although I haSee full review