I want to achieve fullness without too much size - Motiva Round Demi or Motiva Round Full? (Photo)

At size 32 A, each 100 cc of implant corresponds to 1 cup size change. 300 cc implants will take you up 3 cup sizes to a size D.

Best Wishes,

Gary Horndeski, M.D.

Thank you for sharing those details, they’re very helpful. Based on your height (5’2”), weight (113 lbs), and athletic build, your goal of creating better balance with fuller upper poles, but without going “too big”, is absolutely achievable.
Both implant options you mentioned have the same 11 cm base width but differ in projection. The Motiva Round Demi 265 cc offers a softer, more natural slope, while the Motiva Round Full 310 cc provides more upper pole fullness and lift. Since you’re choosing over-the-muscle placement and want noticeable upper fullness, the 310 cc Full may best match your vision while still keeping your look proportional and elegant. For size reference, the 265 cc would likely bring you to about a 34B, while the 310 cc would create closer to a full 34B or small 34C. Both are beautiful, natural options, the main difference is how defined you’d like your upper contour to appear.
If you were to consider under-the-muscle placement, the look would be slightly different. Placing the implant beneath the pectoral muscle softens the upper contour, creating a more gradual slope and a very natural appearance. However, in athletic patients, the muscle can slightly compress the implant, reducing upper pole projection. In your case, a 310 cc Full under the muscle might look similar in fullness to a 265 cc Demi over the muscle.
Overall, for your lean, defined physique and desire for a lifted yet balanced result, the 310 cc Full over the muscle is likely the best match. It enhances upper pole fullness, maintains your natural proportions, and beautifully complements your frame without appearing too large.
Warm regards,Dr. Sibel Atalay, MDBoard-Certified Plastic Surgeon

You’re petite and very lean in the chest—good candidate for over-muscle but under-fascia (subfascial) placement with a small round implant + strategic fat grafting. This combo gives you the upper-pole pop you want while keeping the actual implant size modest and edges soft (important in bodybuilders).
Why subfascial + micro-fat? • Athlete-friendly: avoids pectoral animation seen with submuscular; subfascial adds a thin extra layer vs pure subglandular to reduce rippling/edge show. • More fullness with less cc: small grafts to the upper pole/inner cleavage let us choose a smaller, lighter implant but still create a crisp upper curve. • Natural blend: fat smooths the transition at the implant edges—key when body fat is low.
265 (Demi) vs 310 (Full) — which?
Both have the same 11 cm diameter (width). The 310 “Full” simply adds more projection (and 45 cc isn’t a huge visual jump). On your frame: • If you want the least volume but defined upper pole → 265 Demi + 40–80 cc fat per side. • If you want a touch more projected upper pole without feeling “big” → 310 Full + minimal fat (or smaller fat volumes).
Bra size guess: From a true 34A, either option typically lands around a full B to small C in most brands (sizing varies widely). Fat grafting can tip you to a solid C without a bigger implant.
How I’d finalize the size
Upper-pole shape depends on projection, your tissue stretch, and pocket control—not just cc. The most reliable way to nail your goal is intra-operative sizing (temporary sizers) within a pre-agreed range (e.g., 275–315 cc), then fine-tune with a small fat graft for cleavage and contour.
Notes for best results • Ensure pinch thickness ≥2 cm over the upper pole or plan fat grafting to prevent rippling. • No nicotine and keep calories/protein up for fat-graft take. • Expect 50–70% fat survival; small touch-ups are occasionally needed.
Bottom line: For “fullness without too much size” on a lean, athletic chest, subfascial placement + small round implant + targeted fat reliably delivers a high, pretty upper pole while keeping you proportional. In the OR, a sizer-based decision between ~265–310 cc will let your surgeon match your exact look.