325cc vs 350cc Breast Implant Sizers

Drag the slider to compare the same model without sizers and wearing 350cc Oumènta breast augmentation 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 300cc vs. 325cc 2-Pack or our 275cc vs. 325cc 2-Pack.

Leaning a Little Larger? Compare our 350cc vs. 375cc 2-Pack or our 350cc vs. 400cc 2-Pack.

Want a More Noticeable Difference? Our 300cc vs. 350cc 2-Pack and 325cc vs. 375cc 2-Pack each compare two sizes 50cc apart.

Want a Third Size? Explore our 300cc vs. 350cc vs. 400cc 3-Pack, or build a custom kit with 325cc, 350cc, and 375cc. You can also choose any two volumes with our Choose-Any-2 Sizer Kit.

325cc vs. 350cc Breast Implants: How Different Are They?

350cc has 25cc more volume per breast than 325cc. That's about 7.7% more sizer volume, or roughly 1.7 tablespoons per side.

That doesn't mean your breasts will look 7.7% 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.

When Other People Weigh In

Partners, friends, and family often have opinions about implant size. Their support can help, but with a difference this small, they may not see what you see, and they won't be the ones living with the result every day.

Try forming your own preference first. Wear both sizes for a few days and decide which one you like. Then, if you want, ask for input. You'll be able to tell whether their view changes your mind or simply adds to it.

Why Your Phone Photos May Mislead You

Phone cameras often use wide-angle lenses. Close up, they can exaggerate whatever is nearest to the lens, which can make small size differences look bigger or smaller than they really are. Mirror selfies at arm's length are especially unreliable.

For fairer comparison photos:

Stand back. Prop your phone about six feet away and use the timer, or have someone take the photo from a distance.

Keep everything the same. Use the same spot, lighting, outfit, and camera height for both sizes.

Take front and side views. A small volume difference often shows more clearly in profile.

Compare later. Look at both sets side by side a day later, with fresh eyes.

Bring these photos to your consultation. They'll give your surgeon a more accurate picture of what you liked.

If You Can't Choose Between Them

If 325cc and 350cc feel almost identical to you, that tells you something too. It may mean you'd be comfortable with either size. Then the choice between them may come down to the implant options and dimensions your surgeon recommends for your body.

If both feel a little too modest, try 375cc. If both feel like slightly more than you want, compare 300cc.

For a closer look at the lower size, read 325cc Breast Implant Sizers: Before and After.

Will 325cc or 350cc Give Me a C or 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 Augmentation Sizer Sizes

Learn more about our 325cc sizers, 350cc sizers, and 375cc sizers, or try our Breast Implant Size Calculator for a suggested range of sizes to try.

For more about choosing a size, read What's the Average Breast Implant Size?, 350cc vs. 450cc Breast Implants: Which Size Is Right?, and How to Choose the Right Breast Implant Size, or browse our full Breast Implant Sizing Guide.

How much bigger is 350cc than 325cc?

350cc has 25cc more volume per breast, about 7.7% more than 325cc. The visible difference is usually subtle and most noticeable in fitted clothing and from the side.

Will anyone else notice the difference between 325cc and 350cc?

Often not, especially in everyday clothing. The difference is usually most noticeable to you. That's why your own experience wearing both breast augmentation sizers matters most.

How should I photograph the sizers for comparison?

Place your camera about six feet away, use a timer, and keep the lighting, outfit, and angle the same for both sizes. Avoid close-up mirror selfies, which can distort small differences.

Should I get 325cc or 350cc 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 325cc or 350cc, 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.