- Experience this soft feeling yet firm holding support tanksuit. Engineered with new yarns that feel soft and cool, you are comfortable all day long while enjoying the shape you want. This invisible undershirt eliminates bulges throughout your upper body and wraps around your spare tire and simply flattens it. Two front layers provide you with compression in all the areas of concern. No visible seam lines throughout the front. Perfectly cut straps eliminate underarm discomfort. Your back feels the support it needs and your new posture brings you confidence. A cotton snap crotch makes for easy and convenient bathroom visits. 75% Nylon/ 25% Spandex. Made in the U.S.A.