10I Bra Size – Find Your Perfect Fit
Find Your Perfect Fit in a 10I Bra
Shopping for bras in a 10I shouldn’t feel like hunting for unicorns. At The Foundation, we’re all about making every woman feel supported, seen, and stylish—especially in those harder-to-find sizes like 10I. Let’s break it all down so you can shop with confidence, using our Lingerie Size Guide and expert fitting advice.
What Does 10I Mean?
The number 10 refers to your bra band size, which measures the circumference of your ribcage just under your bust. The letter I refers to your cup size, representing the volume of your bust. A 10I bra means a smaller band with a larger cup—ideal for curvy women with a petite frame and a fuller bust. Knowing your bust size - band size difference is the key to finding your perfect size.
International Bra Size Conversion Chart
| Region | Band Size | Cup Size |
|---|---|---|
| Australia (AU) | 10 | I |
| UK | 32 | G |
| USA | 32 | I |
| EU | 70 | J |
| France (FR) | 85 | J |
Note: Cup sizes and international sizes aren't standardised—always refer to a handy bra size chart and try before you buy.
How to Measure Yourself With a Soft Measuring Tape
Use this quick bra size guide to get an accurate measurement:
- Step 1 – Measure your bra band: Wrap a soft measuring tape snugly under your bust. Keep the tape parallel to the ground. This is your actual underbust measurement. Round up to the nearest even number for your band size.
- Step 2 – Measure your bust: Measure around the fullest part of your bust. Keep the tape in position comfortably—not tight or loose. This gives you your bust measurement.
- Step 3 – Calculate your cup size: Subtract your band size from your bust size. The difference determines your cup size. A 9 cm difference is typically an I cup in Australian sizing.
Alternatively, use our bra size calculator for a quicker fit check.
Sister Sizes to 10I
If 10I isn’t available, consider these bra sister sizes that maintain a similar fit with a differently-sized band or cup:
Best Bra Styles for 10I
Supportive bra styles are essential when you’ve got curves in all the right places. Our collection caters to breasted women who want both form and function:
- Lightly padded bras – Shape without bulk
- Wireless bras – Ideal for lounging or nursing
- Seamless bras – Invisible under clothing
- Full cup bras – Great for everyday wear
- Underwire bras – Extra lift and support
Featured Brands in 10I
We stock comfortable lingerie brands known for high quality and style. Our 10I bras are sourced from renowned brands such as:
PrimaDonna– Craftsmanship that contours
Chantelle – French flair meets function
Samanta – Exceptional European design and support
Corin – Technical precision meets comfort
Each piece is curated for women who value expert bra-fitting service. We also offer a personalised experience through our in-store fittings and personalised customer service.
Lingerie Size Guide – Quick Overview
Here’s how our sizing translates to your overall fit:
- Size: 10
- Bust: 89–91 cm
- Waist: 71–74 cm
- Hip: 95–98 cm
- Height/Weight Size: Best confirmed via in-person fitting
Ready to Feel Fabulous?
Whether you’re browsing online or visiting our stores, our 10I collection helps you find your perfect size without compromise. Our range is stocked in excellent condition—new and pristine items from leading brands.
Shop Now and discover what true comfort feels like.
FAQs
How do I know if I’m wearing the right bra size?
Use a measuring tape and follow our bra size chart. If your band rides up or your cups gap, it’s time for a refit.
What if I fall between sizes?
Try a sister size or book a fitting with us. Minor body measurement tweaks can make a big difference.
Are all brands sized the same?
Not always. Refer to our Lingerie Size Guide and check fit notes for each brand.
Do you offer returns on bras?
Yes—if the item is unworn and meets our return policy. View details here.
Can I get expert fitting help?
Absolutely. Visit us for an expert bra-fitting service or reach out online. We’re here to support you.