ShapeFX Swimwear Look Slim in Your Swimwear. Women have a secret weapon this season on and off the beach. The new ShapeFX Swimwear can help you look slim in your bathing suit. The shapefx swimwear prices range from 39 to $44 which is a pretty good for a swimsuit that can slim your tummy. With the Shape Fx Swimwear you can choose from one piece swimsuits to chic tankinis. They're styles that are chic and can hide the areas you want. ShapeFX has perfected the technology of power-mesh control. The apparel contains control knits with built-in power mesh panels to instantly smooth and hide unsightly bulges. They also offer dresses, jeans, and tops with strategic details that camouflage flaws.