Custom Breast Implant Sizer Kit
Custom Breast Implant Sizer Kit
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Breast Implant Sizer Kit: Choose Your Own 3 Sizes to Try at Home
Wondering whether 300cc, 350cc, or 400cc breast implants would be right for you? Or perhaps you're considering 200cc, 225cc, or even 500cc?
With the Oumènta Custom Breast Implant Sizer Kit, you choose any three sizes from 200cc to 500cc, available in 25cc increments. Then experience them at home, in your own clothes, during your normal activities.
Instead of guessing from photographs, cup-size charts, or a few minutes in front of a mirror, you can compare different volumes on your own body.
What's Included in Your Oumènta Custom Kit
1 Oumènta Pocket Bra in your selected size
1 set of breast implant sizers in your first selected volume
1 set of breast implant sizers in your second selected volume
1 set of breast implant sizers in your third selected volume
Choose your bra size and three sizer volumes when ordering. Available sizer sizes range from 200cc to 500cc in 25cc increments.
Why Choose Three Breast Implant Sizes?
Because you may not know what you prefer until you've experienced the alternatives.
Suppose you're considering 350cc. You might choose 325cc, 350cc, and 375cc to compare a smaller, middle, and larger option. Or select 350cc, 375cc, and 400cc if you want to explore more subtle differences.
A 50cc difference may seem small, but you might notice changes in fullness when reaching for the steering wheel, lifting weights, or wearing a fitted blouse. A 100cc difference can be considerably more noticeable.
The real question isn't just how different these sizes look. It's how you feel wearing them.
Experience Different Sizes in Your Everyday Life
Go for a comfortable run, work out at the gym, carry groceries, drive your car, or try on your favorite outfits. Does the larger size feel too full? Does the smaller size seem less noticeable than you expected?
And don't overlook the additional weight. Larger volumes mean more material and potentially more weight. A 100cc increase in silicone implant volume corresponds to approximately 200 grams (7 ounces) of additional weight for a pair, although actual implant weights vary.
Oumènta sizers help you explore external fullness and weight during normal activities, although they cannot reproduce exactly how surgically implanted breasts will look, move, or feel.
Research Supports Comparing Sizes Before Surgery
567 Women Studied
In a published breast augmentation study involving 567 women, those who participated in preoperative implant sizing reported greater satisfaction and were less likely to wish they had chosen a different size afterward.
The study used silicone implant samples in bras, rather than Oumènta sizers, but it supports the value of actively participating in size selection before surgery.
Want to understand the process better? Read our guide to at-home breast implant sizing.
Still deciding whether physical sizers are right for you? Compare the options in our Rice Test vs. Breast Implant Sizers vs. 3D Simulation article.
Wear each size for as many days as you need to feel confident about your breast implant size preferences. Compare them under different outfits, during everyday activities, and whenever you want to revisit your favorites.
Don't just imagine the difference. Live with it.
Custom Breast Implant Sizer Kit FAQ
Click any question to see the answer.
How do I choose my three breast implant sizer sizes?
Start with a volume you're considering, then choose one smaller and one larger size. For example, if you're interested in 350cc, try 300cc, 350cc, and 400cc. If you're deciding between very similar volumes, choose sizes only 25cc apart. Your surgeon can help identify an appropriate range based on your anatomy.
Can I choose sizes in 25cc increments?
Yes. Oumènta offers sizer volumes from 200cc through 500cc in 25cc increments. You can compare nearby sizes such as 325cc, 350cc, and 375cc, or choose a wider range to experience more noticeable differences.
Will breast implant sizers help me decide between 300cc and 400cc?
They can help you explore your preferences. Moving from 300cc to 400cc represents approximately 33% more volume. Wearing both sizes under your normal clothing may help you understand which silhouette you prefer. However, an external sizer cannot predict the exact appearance of a surgically placed implant.
How long can I wear my breast implant sizers at home?
Take as many days as you need to compare your options. Try each size during different activities, revisit your favorites, and compare how you feel in various outfits. Remove them whenever they become uncomfortable, and follow the product's care instructions.
Can I run, exercise, and lift weights while wearing Oumènta sizers?
You can explore suitable everyday activities, including walking and comfortable exercise, provided the pocket bra holds the sizers securely. Notice how different external volumes feel during movement. External sizers do not reproduce the exact movement or physical effects of implanted breasts.
Will the sizers tell me what cup size I'll be after surgery?
No. Breast implant volume does not translate reliably into a specific bra cup size. Your existing breast tissue, chest measurements, implant profile, and surgical placement all influence the result. Oumènta helps you compare external volumes, while your plastic surgeon determines which implant options may be appropriate for your body.
Important: Oumènta sizers are wearable, experiential sizing aids—not medical devices or actual breast implants. They do not predict surgical results or reproduce the exact weight, shape, movement, or feel of implanted breast implants. Always consult a qualified plastic surgeon before making surgical decisions.

Try sizes for days.
Under your own clothes.
Take it to your doctor.
Not sure where to start? Let us guide you.
Answer a few quick questions and get your personalized size recommendation.