Shirt - Skirt Saving Underwear 2 PCS Black - White ATTENTION! PLEASE SELECT THE SIZE ACCORDING TO YOUR HIPS MEASUREMENT Extended-fake-saving skirt shirt poplin cotton. To do this, measure your hip circumference "at its widest part" and "Add at least 5-6 cm allowance". With this measurement you find, you can find the size you need by using our size chart in our product images (second photo). It has an elastic waist. It is a quality - 100% cotton poplin fabric - does not make you sweat. Sweater - Sweatshirt - Tunic - Jacket etc. It can be worn underneath - it gives the impression of being worn over a shirt. Under short-cut sweaters and sweatshirts. Over tights and trousers to cover the hips. A real savior!