Why aren’t any Inamed or Mentor contoured or anatomically shaped silicone gummy bear breast implants made smooth?

Regardless of the degree of silicone cohesiveness in an anatomically shaped breast implant, it will always have a thinner end and a thicker end. It is very important that the position of the implant be maintained so that no distortion occurs, as would happen if the breast implant flipped up, or front to back. Textured implants tend to adhere firmly to their breast capsule, preventing any rotation, and malposition.