450cc vs 475cc Breast Implant Sizers

Drag the slider to compare the same model without sizers and wearing 450cc Oumènta breast implant sizers.

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

Choose your Pocket Bra by your current band size:

Because this kit includes sizes above 400cc, we recommend Small (S) rather than Extra Small (XS) if your band is 32" or smaller.

The Pocket Bra should feel snug and supportive, similar to a sports bra. A steady fit keeps both sizes in the same position, which matters when only 25cc separates them.

Leaning a Little Smaller? Compare our 425cc vs. 450cc 2-Pack or our 400cc vs. 450cc 2-Pack.

Leaning a Little Larger? Compare our 475cc vs. 500cc 2-Pack.

Want a More Noticeable Difference? Our 450cc vs. 500cc 2-Pack and 425cc vs. 475cc 2-Pack each compare two sizes 50cc apart.

Want a Third Size? Explore our 400cc vs. 450cc vs. 500cc 3-Pack, or build a custom kit with 450cc, 475cc, and 500cc. You can also choose any two volumes with our Choose-Any-2 Sizer Kit.

450cc vs. 475cc Breast Implants: How Different Are They?

475cc has 25cc more volume per breast than 450cc. That's about 5.6% more sizer volume, or roughly 1.7 tablespoons per side.

That doesn't mean your breasts will look 5.6% 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 Five-Outfit Scorecard

When two sizes are this close, a simple scorecard can turn a vague feeling into a clear answer. Choose five outfits you wear often:

1. A fitted T-shirt or knit top
2. Your usual work outfit
3. A dress you love
4. A swimsuit or bikini top
5. Activewear

Wear each outfit with both sizes and score each one from 1 to 5 for how much you like the look. Add up the totals. If one size clearly wins, you have your answer. If the scores are close, either size may suit you, and your surgeon's recommendation can help you decide.

The 24-Hour Rule

When a bold choice feels exciting, it's easy to decide on the spot. Try this instead: once you've picked a favorite, wait a full day without sizers. Then put your favorite back on and look again.

If you still feel the same excitement, your choice is likely a solid one. If you hesitate, try the other size once more. A preference that holds up after a pause is one you can bring to your consultation with confidence.

Near the Top of the Range

Oumènta sizers go up to 500cc. If 475cc still feels modest after your comparison, you can try 500cc. If both sizes feel like a bit more than you want, compare 425cc.

At the upper end of the range, your surgeon's assessment of your measurements becomes especially important. Bring your scorecard and photos to your consultation so your surgeon can see what you liked and why.

For a wider look at larger sizes, read 350cc vs. 450cc Breast Implants: Which Size Is Right?

Will 450cc or 475cc Give Me a DD Cup or Larger?

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 450cc breast implant sizers, 475cc breast implant sizers, and 500cc 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 What Is At-Home Breast Implant Sizing?, What's the Average Breast Implant Size?, and How to Choose the Right Breast Implant Size, or browse our full Breast Implant Sizing Guide.

How much bigger is 475cc than 450cc?

475cc has 25cc more volume per breast, about 5.6% more than 450cc. The visible difference is usually subtle and most noticeable in fitted clothing and from the side.

How can I be sure about a larger size?

Test it carefully. Compare both sizes in the same outfits, score them, and take a day off before confirming your favorite. A preference that holds up over time is more reliable than a first impression.

Which Pocket Bra should I choose if my band is 32" or smaller?

Choose Small (S). Because this kit includes sizes above 400cc, we recommend Small rather than Extra Small for bands of 32" or smaller.

Should I get 450cc or 475cc 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 450cc or 475cc, 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.