It has a relaxed fit, so it's perfectly fine for those who wear a size L. I'm selling this because I mostly wear the black color version and haven't had many opportunities to wear this one. A petticoat isn't included, but I don't think the sheerness is a concern. Please search by the product number for more details. This is the popular long version. Women's size M, Elastic waist, Pockets on both sides. The hem has slits. (See photo 3) Thank you for looking!