325cc vs 375cc Breast Implant Sizers

Drag the slider to compare the same model without sizers and wearing 350cc Oumènta sizers, the size exactly between 325cc and 375cc.

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, so your comparison stays fair.

Want a Closer Comparison? Try our 325cc vs. 350cc 2-Pack or our 350cc vs. 375cc 2-Pack.

Leaning a Little Smaller? Compare our 275cc vs. 325cc 2-Pack or our 300cc vs. 350cc 2-Pack.

Leaning a Little Larger? Compare our 350cc vs. 400cc 2-Pack or our 375cc vs. 425cc 2-Pack.

Want to Try 350cc Too? Build a custom kit with 325cc, 350cc, and 375cc, or explore our 300cc vs. 350cc vs. 400cc 3-Pack. You can also choose any two volumes with our Choose-Any-2 Sizer Kit.

325cc vs. 375cc Breast Implants: How Different Are They?

375cc has 50cc more volume per breast than 325cc. That's about 15% more sizer volume, or roughly 3.4 tablespoons per side.

That doesn't mean your breasts will look 15% 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.

The Everyday Moments That Matter

Most of life doesn't happen in front of a mirror. Try both sizes during the small, ordinary moments that add up:

The seatbelt and strap test. Notice how each size feels under a seatbelt, a crossbody bag strap, or backpack straps.

The lazy Sunday test. Wear each size in loungewear, a casual T-shirt, or a hoodie. Does one feel more like you on an ordinary day off?

The workday test. Wear each size through a full day of work. Notice how your work clothes fit and how you feel by evening.

The side view. Take matching front and side photos in the same outfit and lighting. A 50cc difference often shows most in profile.

The "Future You" Question

It's natural to focus on how you'll look right after surgery, or in your first summer. Try thinking further ahead. Picture your daily life a few years from now: your work, your workouts, your wardrobe, the activities you love. Which size fits that picture?

There's no right answer. Some women want a fuller look they'll enjoy every day. Others want a size they'll hardly think about. Wearing both sizes helps you find out which matters more to you, and gives you something specific to discuss with your surgeon.

What About 350cc?

350cc sits exactly between these two sizes. It's the size shown in the slider above. If 325cc feels slightly too modest and 375cc slightly too full, the middle may be worth trying with a 25cc 2-Pack or a custom kit.

For more on these sizes, read 325cc Breast Implant Sizers: Before and After and 275cc vs. 375cc: Will You Regret Going Too Big or Too Small?

Will 325cc or 375cc 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 Is At-Home Breast Implant Sizing?, 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 375cc than 325cc?

375cc has 50cc more volume per breast, about 15% more than 325cc. The difference is often visible in fitted clothing, swimwear, and from the side.

How can breast augmentation sizers help me choose between 325cc and 375cc?

Breast augmentation sizers let you wear each volume through ordinary days, at work, in the car, and at home, so your preference is based on real experience instead of photos alone.

Is 375cc a large implant size?

375cc is above the middle of commonly discussed implant volumes, but whether it looks large depends on your frame, chest width, existing breast tissue, and implant profile. Wearing 375cc sizers shows you how that volume looks on your body.

Should I get 325cc 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 325cc 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.