Shapewear thong : 1.high-quality Polyamide +Spandex and cotton crotch,has strong elasticity,much comfortable for all day wearing and very healthy to wear every day. 2.Shapewear with steel bones, to provide midsection and back support,help to relief back pain and improve your posture,keep it always stay in right place. 3. Flatten your tummy,reduce your waistline