spanx undie-tectable brief soft nude lg spanx spanx pants and leggings size chart spanx shapewear size chart spanx bra size chart spanx size guide looking for a nice rear view? get your butt in undie-tectable®. these undies solve all of your vpl (visible panty lines) woes and are totally invisible under clothes. elastic-free edges and a bonded waistband make these next-to-nothing panties truly undie-tectable®. support level 1: smooth - a light hug. comfortable smoothing waist - looks and feels great! elastic-free edges and cotton gusset = no vpl (visible panty lines). style# sp0215. 78% nylon, 22% spandex. machine wash cold, gentle cycle. do not bleach. lay flat to dry. do not iron. imported. if you're not fully satisfied with your purchase, you are welcome to return any unworn and unwashed items with tags intact and original packaging included.