Breast Implant Size Chart — CC, Cup Size, Profile, and Fit

CC means cubic centimeter, a unit of volume. One cc equals one milliliter, so a 350cc implant contains 350 milliliters of its specified fill. The number describes how much volume is inside the device. It does not tell you the implant's diameter, projection, profile, shape, shell characteristics, or how much breast tissue will cover it.

Volume is therefore only one coordinate in sizing. Imagine pouring the same amount of water into a wide, shallow bowl and a narrow, deep glass: the volume is identical, but the dimensions are not. A lower-profile implant can distribute a given cc across a broader base, while a higher-profile implant can place a similar volume into a narrower footprint with more forward projection. That dimensional difference changes how the implant fits the chest and contributes to how it appears.

CC is also not a direct measure of breast weight or bra size. Implant materials and designs differ, and bra labels describe the relationship between band and bust measurements rather than a fixed volume. In a surgical consultation, cc becomes meaningful only after it is considered alongside the patient's measurements and the available implant dimensions.

In practical terms, a catalog must be read across several columns. Two devices listed at 350cc can differ in diameter and projection even within one manufacturer's range, and the available steps may change between product families. The cc column helps compare total volume; the dimensional columns show whether that volume is distributed in a way that fits the planned breast pocket.

Patients often use small, medium, and large as shorthand, but these are not standardized medical categories. A volume that looks modest on a broad chest may look pronounced on a narrow chest. Starting breast volume also matters: an implant adds to existing tissue rather than replacing it, so the same device can produce a different total breast volume in every patient.

The ranges below are a planning vocabulary, not a recommendation. Many primary-augmentation conversations include options around 300–400cc, but there is no universal most popular size and no range that is automatically proportionate. A surgeon may move above or below a patient's initial cc request after measuring the usable breast base and assessing whether the tissues can support the proposed footprint and projection.

A commonly used conversational estimate is that about 150–200cc may correspond to roughly one cup-size increase. This is a rough estimate, not a formula. It depends on the patient's frame, band size, existing tissue, implant dimensions, and how a particular bra is made. Bra cup sizing is not standardized across brands or countries, so even the same breast can carry different cup labels in different bras.

The table extends that rule only to make volumes easier to visualize. It should not be read as a promised postoperative size. On a wider chest, added volume is distributed across a larger area and may create a smaller apparent cup change; on a narrower chest, the same cc may appear more prominent. Higher projection, existing upper-pole tissue, and the final breast shape can also affect how a bra fits.

For the same reason, there is no fixed answer to “How many cc is a C cup?” A patient starting with little breast tissue and a smaller band may require a different implant from a patient who already wears a B cup or has a broader band. The useful consultation question is not which cc equals C; it is which base width, projection, and volume can move the patient toward the proportions represented by her reference goal while respecting her anatomy.

Implant profile describes how projection relates to base width. At a comparable volume, a low-profile device is generally wider and projects less, while a high- or extra-high-profile device is generally narrower and projects more. Profile is not a quality grade: high does not mean better, and low does not mean less advanced. It is a geometric option used to fit a particular breast base and shape goal.

Manufacturers use different profile names and do not always divide their ranges at the same dimensions. The relationships below are therefore general. A profile is selected by checking the actual diameter and projection in the relevant product catalog, not by assuming that labels from two product families are interchangeable.

From the operating surgeon's perspective, the first sizing question is usually not “How many cc?” but “What footprint can this breast safely accept?” Implant base width is compared with the patient's breast base, chest-wall contour, natural fold, nipple position, and the distance between the breasts. An implant that extends beyond a stable base can crowd the cleavage area, push laterally, or require a pocket that is difficult for the tissues to hold. An implant that is too narrow may leave a different shape than the patient intended even when its cc number sounds right.

Soft-tissue thickness is the next constraint. The surgeon assesses existing gland and fat, skin stretch, fold strength, and tissue coverage, often with a pinch measurement and examination in more than one position. Thin coverage can make edges or rippling easier to see and may narrow the reasonable range of projection. Loose skin, previous pregnancy, asymmetry, tuberous features, or prior surgery can change the plan because the implant must work with an existing envelope rather than a blank template.

Pocket position and implant placement are considered with those tissues. A plan beneath muscle, partly beneath muscle, or above muscle creates different coverage conditions and movement trade-offs; it does not turn an unsuitable width into a suitable one. The dimensions still need to remain compatible with the breast base and the surgeon's intended pocket boundaries. Where the two breasts differ, the assessment may also support different implant volumes or dimensions on each side, although perfect symmetry cannot be promised.

Lifestyle and aesthetic priorities help choose among dimensions that the anatomy can support. A patient who runs, lifts, or prefers minimal breast movement may weigh implant mass and projection differently from someone seeking a more prominent upper pole. Reference photographs are useful for discussing proportions, but they are not transferable outcomes because the starting anatomy is different. The surgeon's task is to translate the visual goal into a stable diameter, projection, and volume range, then explain what must be traded off if the requested look exceeds the tissue limits.

300cc breast implants are often discussed as a moderate-volume option, but the result is not a fixed look. On a narrow chest with little starting tissue, 300cc can appear distinctly full or projected, especially in a higher profile. On a broader chest or under a larger existing breast envelope, the same 300cc may read as a restrained increase because the volume is spread across more width and blended with more tissue. Placement, profile, and skin elasticity further change the outline. The number can therefore describe the device, but it cannot guarantee a cup size, cleavage pattern, or upper-pole shape.

350cc breast implants sit only 50cc above 300cc and 50cc below 400cc, yet that midpoint can fit very differently depending on its dimensions. A narrower 350cc implant with greater projection may look more prominent from the side, while a wider 350cc option may contribute more breast width and less forward emphasis. A petite patient can experience it as a relatively substantial augmentation; a taller patient with a broad torso may experience it as more moderate. Existing tissue can soften or amplify the contours. In other words, the same 350cc does not create the same result across patients, and the catalog diameter matters as much as the headline volume.

400cc breast implants commonly create a fuller visible change, but 400cc is not automatically “large” for every body. On a narrow frame it may require more projection or extend beyond the desired base, whereas on a broad chest it may occupy an appropriate width and look balanced. The starting breast volume, tissue thickness, skin capacity, and chosen profile determine whether its edges are well covered and whether the pocket can remain stable. Because the same 400cc can look pronounced on one patient and moderate on another, it should be evaluated as a specific width-and-projection combination rather than chosen from the volume label alone.

Sizing begins with measurements and examination, not a catalog number. The surgeon records breast-base width, chest and fold relationships, tissue thickness, asymmetry, skin quality, and the patient's starting shape. The patient then describes the desired degree of change and reviews reference images for qualities such as upper-pole fullness, side projection, and overall proportion. Those inputs narrow the choice to a small group of dimensions rather than one arbitrary cc target.

Implant sizers placed inside a supportive sizing bra can help compare external silhouettes in clothing. 3D imaging can model several widths, profiles, and volumes on a digital representation of the torso. Both tools improve communication, but neither reproduces surgery exactly: a sizer sits outside the breast, while a simulation cannot fully predict tissue stretch, healing, implant settling, or pocket behavior. They are comparison tools, not outcome guarantees.

The surgeon then checks the preferred option against tissue limits and discusses adjacent sizes when appropriate. Choosing substantially more width or projection than the tissues can support may increase tissue stretch, edge visibility, discomfort, pocket instability, or the likelihood of revision. It can also contribute to bottoming-out, in which the implant descends below the intended fold and the nipple appears relatively high on the breast. The aim is not to choose the largest device that physically fits; it is to choose dimensions that pursue the patient's goal while keeping the planned pocket and soft-tissue load reasonable.

Motiva and Mentor both offer multiple volumes and profiles, but their naming systems and dimension steps do not map one-to-one. Motiva catalogs profiles such as Mini, Demi, Full, and Corsé, while Mentor product families use labels including Moderate, Moderate Plus, High, and Ultra High. Equal cc values across the two brands can have different base diameters and projections, and a similar profile name does not establish equivalent geometry.

For that reason, brand selection is made in parallel with dimensional fit rather than by treating one brand as larger, smaller, or better. The official manufacturer specification tables are kept in the existing brand guides: /en/checklist/motiva-implants-guide and /en/checklist/mentor-implants-guide. Those tables list diameter, projection, and volume by product line; this general guide does not duplicate them.