WAIST TRAINERS & VEST Nelly's Waist Trainers Knee Length Open Bust Bodysuit Waist Trainer Nebility Women Waist Trainer Bodysuit Double Slim Full Body Shapewear Women's Seamless Sculpting Open Bust Bodysuit with Thigh Shaper MeMoi Pin on Women Waist Trainer Pinterest. This Knee Length open bust bodysuit for Women Waist Trainer offers full body shaping with a unique open bust design. The high control fabric keeps you slim and toned with a discreet open crotch for convenient bathroom trips. Comfort and confidence in one garment a must have for any wardrobe. MATERIAL Spandex Nylon