Lttcbro Women's Lace Waist Trainer Underbust Corset Bodyshaper Waist Cincher 90% Polyester 10% Spandex Front 3 columns hook-and-eye closure High Elastic,please choose according to your waistline measurement. Waist Shapewear Come with 9 PCS Spiral steel bones You can put on this soft shapewear for sport gym or outside run, it is good for body shaper and pregnant women postpartum tummy control