Breast implants come in round or teardrop ("anatomic") shapes, and the "teardrop" implants can have numerous configurations, base dimensions, profiles, and can be silicone or saline. While some plastic surgeons prefer the teardrop-shaped implants in some situations, smooth round implants are generally the softest, most natural in appearance (upright and lying down), least likely to be felt externally, and (for saline implants) least likely to leak. They also cost less than teardrop-shaped textured implants. Textured surface implants have a thicker shell, are more likely to be felt externally, and have a somewhat higher leak rate (saline implants) because of the thinner or weaker areas in the tiny peaks and valleys of the shell surface. Since teardrop-shaped implants must have proper positioning and must stay in that position (sloped part up, rounded part down) to take advantage of their innate shape, by necessity they are textured so that the body's tissues can adhere to and maintain the proper position of the implants. (Upside-down teardrop implants really would look weird.) Even less major malposition asymmetries are “stuck” and remain a bit “off” in appearance. This adherence also makes initial positioning critical—textured implants do not settle or drop over time. Post-op tissue swelling and tightness diminish, giving a softer feel, but position (by definition) is determined by the initial placement and adherence. Teardrop, “anatomic,” or “gummy-bear” implants cannot and do not move very much at all as the patient changes from a standing to a reclining position. Teardrop implants remain teardrop-shaped when the patient is lying down, whereas the natural breast flattens out and assumes a round appearance. Teardrop, “anatomic,” or “gummy-bear” implants are also more costly than round smooth implants. The smooth round implant does just what a natural breast does: it is teardrop-shaped when the patient is upright, and flattens and drops slightly to the side when the patient reclines. Thus, the round implant is actually more anatomically realistic than the teardrop, “gummy-bear,” or so-called “anatomic implant.” Some implant manufacturers and plastic surgeons have suggested that the “anatomic” or teardrop-shaped breast implant has a more natural look than a round implant, and much advertising and marketing has been used to promote “anatomic” implants to the public. These implants are perfectly good devices, but are more expensive than smooth, round implants, and whether or not they are truly more "anatomic" is questionable. A recent study compared actual women with smooth, round implants to women with textured, teardrop-shaped implants. Mammograms were performed in upright and supine (lying-down) positions, and digital tracings computerized and compared. Both the round and teardrop-shaped implants had a sloped, teardrop shape when the women were upright. In fact, in upright patients, teardrop and round implants were indistinguishable on X-ray. But when a woman is lying down, the natural non-augmented breast flattens, drops to the side of the chest, and assumes a round shape, as does the round smooth implant. The teardrop-shaped implant stays teardrop-shaped in the lying-down position, which makes this unusual appearance actually less anatomic than the round implant!You would be best to consider extra-fill cohesive silicone gel implants (like the Allergan Natrelle Inspira, or Sientra style 106) to reduce visible rippling since you are so thin and bony, but going with teardrop-shaped implants will require absolute position perfection at the time of surgery, since they do not drop, and if they are "off," they stay that way. Plus, they require larger incisions, cost more, do not flatten and drop to the sides slightly like natural breasts do (you DID want "as natural as possible" did you not?), oh, and did I say they cost more?Which of those do you really like? The higher cost must make them "better," right?I think you should obtain another couple of consultations and consider other (perhaps better) options. IMHO, of course! Best wishes! Dr. Tholen