Skip to product information

350cc vs. 400cc vs. 450cc Breast Implant Sizers | XL Bra

350cc vs. 400cc vs. 450cc Breast Implant Sizers | XL Bra

Regular price $199.00
Regular price Sale price $199.00
Sale Sold out
Shipping calculated at checkout.
See 450cc Breast Implant Sizers: Before & After

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

Model wearing 450cc Oumènta breast implant sizers Same model without breast implant sizers
No Sizers 450cc Sizers

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

Trying to decide between 350cc, 400cc, and 450cc breast implants? These three sizes give you a 100cc comparison range, with 50cc increments that let you explore different levels of external fullness under your own clothing.

The Oumènta At-Home Breast Implant Sizer Kit includes three pairs of wearable sizers and an Extra Large (XL) Pocket Bra. Instead of relying only on photographs or a brief mirror comparison, you can try each volume during normal activities and discover which external silhouette you prefer.

What's Included in Your Oumènta Kit?

  • 1 Extra Large (XL) Oumènta Pocket Bra with internal sizer pockets
  • 1 pair of 350cc breast implant sizers
  • 1 pair of 400cc breast implant sizers
  • 1 pair of 450cc breast implant sizers

Wear each size in the same bra and clothing. Compare your appearance from the front and side, and try the sizers during comfortable everyday activities. Give yourself time to explore your preferences before discussing implant options with your plastic surgeon.

Need a Different Bra Size?

The same 350cc, 400cc, and 450cc sizer combination is available with:

Choose your Pocket Bra according to your current fit rather than your desired postoperative breast size.

Not Quite the Breast Sizes You Were Looking For?

Prefer slightly smaller volumes? Try our 300cc vs. 350cc vs. 400cc Sizer Kit with XL Bra .

Considering larger volumes? Explore our 400cc vs. 450cc vs. 500cc Sizer Kit with XL Bra .

Want to choose your own three sizes? Build a custom breast implant sizer kit .

More About These Breast Implant Sizes

350cc vs. 400cc vs. 450cc: How Different Are They?

The difference between 350cc and 450cc is 100cc, approximately 29% more volume. However, a 29% increase in volume does not necessarily produce a proportional visual change. Your body proportions, existing breast tissue, implant dimensions, and surgical technique influence the eventual appearance.

With Oumènta sizers, you can compare three external volumes under the same clothing and discover which silhouette feels most appropriate for your preferences.

350cc Breast Implant Sizers

350cc is the smallest volume in this kit. It provides a starting point for comparing a moderately fuller external silhouette against the larger options.

400cc Breast Implant Sizers

400cc is the middle volume. It contains approximately 14% more volume than 350cc, giving you an intermediate comparison before moving to 450cc.

450cc Breast Implant Sizers

450cc is the largest volume in this kit, containing approximately 29% more volume than 350cc. Comparing these two ends of the range may help clarify your preference for additional external fullness.

Does 50cc Make a Difference?

A 50cc difference can look subtle in loose clothing but may be more noticeable in fitted garments. Try the sizers in the same T-shirt, blouse, or dress, and compare your silhouette from multiple angles.

What Cup Size Will 350cc, 400cc, or 450cc Give Me?

There is no universal conversion from breast implant cc volume to bra cup size. Your starting breast volume, chest dimensions, implant profile, and other anatomical factors affect surgical results. Bra sizing also varies between manufacturers.

External sizers can help you explore appearance and volume, but cannot predict your postoperative cup size.

Why Try Three Breast Implant Sizes?

Comparing three sizes gives you a smaller, middle, and larger reference point. You can explore each option over multiple days instead of relying on a brief mirror comparison.

This can help you identify preferences and questions to discuss with your plastic surgeon.

Research on Preoperative Breast Implant Sizing

567 Women Studied

A published study involving 567 women examined preoperative implant sizing and reported an association between sizing participation and satisfaction with implant size.

The study used silicone implant samples in bras, not Oumènta products. Its findings do not establish that Oumènta sizers improve surgical outcomes.

Read the published preoperative breast implant sizing study.

For more information, explore our 350cc vs. 450cc breast implant comparison and the Oumènta Breast Implant Sizing Guide .

Want an Intermediate Size?

Oumènta also offers 375cc and 425cc sizers for more precise comparisons.

350cc vs. 400cc vs. 450cc Frequently Asked Questions

Is 450cc much bigger than 350cc?

450cc contains approximately 29% more volume than 350cc. How different they appear depends on body proportions, sizer placement, and clothing.

Is 400cc a good middle choice?

400cc falls halfway between 350cc and 450cc by volume. Trying all three can help you discover which external silhouette you prefer.

Can I wear these sizers in an XL Pocket Bra?

Yes. This kit includes an Extra Large Oumènta Pocket Bra designed to accommodate all three included volumes: 350cc, 400cc, and 450cc.

How long should I wear each breast implant sizer size?

Try each size during comfortable normal activities for as long as feels comfortable. You can repeat the comparison over several days rather than making your decision during one short session.

Can breast implant sizers predict my surgical results?

No. Oumènta sizers demonstrate external volume and appearance. They do not predict postoperative breast shape, cup size, or surgical outcomes.

Oumènta sizers are wearable apparel for personal sizing exploration. They are not medical devices, do not predict surgical results, and are not a substitute for consultation with a qualified plastic surgeon.

View full details
A stack of five white breast Implant Sizers varying sizes, isolated on a plain white background.

Try sizes for days.

Wear each pair at home as long as you need, instead of a few minutes in a consultation room.
Oumènta white pocket bra with internal pockets designed to hold breast implant sizers for at-home size comparisons.

Under your own clothes.

The pocket bra holds the sizers in place at work, at the gym, and in everyday life.
Breast implant sizer try on kit.

Take it to your doctor.

Show your doctor the size you actually liked, not a guess.