Breast Augmentation Sizer Kit | Choose Any 2 sizes + Bra

Drag the slider to compare the same model without sizers and wearing 350cc Oumènta breast implant sizers.

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

Why compare two breast implant sizes? Because even when you've narrowed your choices, it can be difficult to imagine how different volumes will look and feel in everyday life.

Option 1: Compare Two Sizes 50cc Apart

Suppose you're considering 350cc. You might choose 350cc and 400cc.

A 50cc difference may seem small, but you might notice changes in external fullness, your silhouette, or how a fitted blouse looks.

Option 2: Compare Sizes Just 25cc Apart

If you're already close to deciding, compare 325cc and 350cc, or 375cc and 400cc.

These smaller increments let you explore subtle differences in external volume. You may find the distinction difficult to notice, or discover that you have a preference.

Option 3: Explore a More Noticeable Difference

Not sure whether you want a subtle or fuller appearance? Compare 300cc and 400cc, or 350cc and 450cc.

A 100cc difference represents a substantial change in volume and can create a more noticeable contrast when comparing external sizers under your clothing.

There's no requirement to choose consecutive sizes. Pick the two volumes that best match the questions you're trying to answer.

Still considering several possibilities? Our three-size Custom Breast Implant Sizer Kit lets you compare a smaller, middle, and larger option.

It's Not Just How They Look. It's How They Feel.

Go for a walk, enjoy comfortable exercise, 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?

Compare each size under a fitted T-shirt, blouse, or other everyday clothing. Look at your silhouette from the front and side, then notice how different external volumes feel while moving around.

Oumènta's at-home breast augmentation 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.

Consider 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.

That additional weight may matter when you're considering how different breast sizes could fit into your lifestyle. However, external sizers distribute weight differently from surgically placed implants.

Research Supports Active Participation in Size Selection

Take Your Time

Wear each size for 24 hours or longer, as comfort permits. Try different outfits and everyday activities, revisit your favorite, and compare how each external size feels.

There's no need to make your choice after a few minutes in front of a mirror. You can return to your two options as often as you like.

Want to understand the process better? Read our guide to at-home breast implant sizing .

You can also compare different sizing approaches in our article, Rice Test vs. Breast Implant Sizers vs. 3D Simulation .

Don't just imagine the difference. Live with it.

What's included in a breast augmentation sizing kit?

The Oumènta Breast Augmentation Sizer Kit includes one Pocket Bra in your selected size and two pairs of wearable breast implant sizers in the volumes you choose. Select any two available sizes between 200cc and 500cc in 25cc increments.

How do I choose my two breast implant sizer sizes?

Start with the two volumes you're considering with your plastic surgeon. For example, if you're deciding between 350cc and 400cc, select both sizes. If you want to compare more subtle differences, you can choose volumes just 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 and 350cc, or choose a wider range to experience more noticeable differences.

Will breast implant sizers help me compare 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 external silhouette you prefer. However, an external sizer cannot predict the exact appearance of a surgically placed implant.

Can I use breast augmentation sizers before my consultation?

Yes. You can explore different external volumes before or between consultations and discuss your preferences with your plastic surgeon. The sizers are intended to help communicate your preferred look and feel, not determine which surgical implant size is appropriate for your anatomy.

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 favorite, 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.

How do I choose my Pocket Bra size?

Choose your Pocket Bra size based on your current fit, rather than the implant volume you hope to achieve. The Pocket Bra holds the selected sizers securely so you can compare them under your own clothing.

What if I want to compare three breast implant sizes?

If you're still exploring a wider range, consider the Oumènta Custom Breast Implant Sizer Kit with three pairs. It allows you to compare three volumes, such as 300cc, 350cc, and 400cc. Additional pairs of sizers are also available separately.