350cc vs 375cc Breast Implant Sizers

Drag the slider to compare the same model without sizers and wearing 350cc Oumènta breast implant sizers.

External sizing demonstration only. Not a prediction of surgical results.

Choose your Pocket Bra by your current band size:

The Pocket Bra should feel snug and supportive, similar to a sports bra. There's no need to size up for this kit. The internal pockets are designed for the sizers and keep both sizes in the same position, which matters when only 25cc separates them.

Leaning a Little Smaller? Compare our 325cc vs. 350cc 2-Pack or our 300cc vs. 350cc 2-Pack.

Ready to Test 400cc? Compare our 375cc vs. 400cc 2-Pack or our 350cc vs. 400cc 2-Pack.

Want a More Noticeable Difference? Our 325cc vs. 375cc 2-Pack and 375cc vs. 425cc 2-Pack each compare two sizes 50cc apart.

Want a Third Size? Explore our 300cc vs. 350cc vs. 400cc 3-Pack or our 350cc vs. 400cc vs. 450cc 3-Pack, or build a custom kit with 350cc, 375cc, and 400cc. You can also choose any two volumes with our Choose-Any-2 Sizer Kit.

350cc vs. 375cc Breast Implants: How Different Are They?

375cc has 25cc more volume per breast than 350cc. That's about 7% more sizer volume, or roughly 1.7 tablespoons per side.

That doesn't mean your breasts will look 7% larger. The percentage describes the volume of the sizer, not your overall breast size. How either volume looks on you depends on your existing breast tissue, chest width, and frame, and after surgery also on implant profile and placement.

Why Numbers Near 400cc Feel So Big

Numbers carry weight. 375cc can sound much closer to "large" than 350cc, even though the real difference is only 25cc per side. Some women rule out a size because of how the number sounds, not because of how it looks on them.

Wearing both sizes separates the number from the result. If 375cc looks and feels right to you, the number matters less. If 350cc is clearly your preference, you'll know it's based on more than a feeling about 400.

Try the Clothes You Usually Avoid

Most women have styles they skip because they don't feel right in them now: a wrap dress, a fitted bodysuit, a strapless top, a deep V-neck. Try a few of those pieces with each size.

Notice which size makes you want to wear them. This isn't about which one looks "bigger." It's about which one opens up the wardrobe and style you've been wanting.

The Season Test

Layers hide small differences. Under a sweater, blazer, or coat, 350cc and 375cc may look nearly the same. In summer clothes, such as tank tops, sundresses, and swimwear, the difference becomes easier to see.

Try both sizes in your warmest-weather outfits, even if it's not summer yet. Summer is when many women feel most aware of their shape, so it's worth knowing which size you prefer when there's less to hide behind.

If Neither Feels Quite Right

If both sizes feel slightly modest, the next step is 400cc. If both feel like a bit too much, compare 325cc. Either result is useful to bring to your consultation, along with front and side photos taken in the same outfit and lighting.

Will 350cc or 375cc Give Me a D Cup?

There's no reliable conversion between implant volume and cup size. The same volume can look different on two women, and cup sizes vary between bra brands. Oumènta sizers show you external volume under clothing; they can't predict your cup size after surgery.

For more on volume and cup size, read A Cup to C Cup Breast Implants: How Many CCs?

Why Try Sizes Before Surgery?

In a published study of 567 women, a group who tried silicone implant samples in a bra before surgery generally reported that the preoperative sizing process was helpful. The study used implant samples, not Oumènta sizers, and doesn't show that Oumènta products affect surgical outcomes.

Read the published preoperative sizing study.

Explore Individual Breast Implant Sizer Sizes

Learn more about our 350cc breast implant sizers, 375cc breast implant sizers, and 400cc breast implant sizers, or try our Breast Implant Size Calculator for a suggested range of sizes to try.

For more about choosing a size, read 350cc vs. 450cc Breast Implants: Which Size Is Right?, 275cc vs. 375cc: Will You Regret Going Too Big or Too Small?, and What Is At-Home Breast Implant Sizing?, or browse our full Breast Implant Sizing Guide.

How much bigger is 375cc than 350cc?

375cc has 25cc more volume per breast, about 7% more than 350cc. The visible difference is usually subtle and most noticeable in fitted or summer clothing and from the side.

Is 375cc close to 400cc?

In volume, yes. It's 25cc below 400cc. But how any size looks depends on your frame, chest width, existing breast tissue, and implant profile, so the number alone doesn't tell you how it will look on you.

Should I get 350cc or 375cc breast implants?

That's a decision for you and your plastic surgeon. Wearing both sizes at home can help you understand which look you prefer. Your surgeon will assess your anatomy and recommend implant dimensions that suit you.

Why buy a 2-Pack instead of a 3-Pack?

If you've already narrowed your choice to 350cc or 375cc, a 2-Pack focuses on just those two sizes, at a lower price. If you're still exploring, a 3-Pack or custom kit adds a third size for a wider comparison.

Will these sizers show me how my implants will look?

No. Oumènta sizers show external volume under clothing. They can't reproduce implant placement, tissue response, implant profile, or surgical results.