Spanx seamless highr power shorts provide all day shaping. If you wear as underwear, you have no visible panty lines. Lightweight,. Comfortable. High waist sits under the bust for shaping ans support. No slip silicone strip helps them stay in place. Wearing these feels like a firm hug. High waisted-mid thigh. 54%nylon 46% spandex. Hang dry. Fits well if you put it on first then put placing your bra over the waistband. Comfortable. soft. Lightweight. Spanx are new, box is worn B145 size M