20F
20F Bra Size Bras – Supportive Lingerie for Curvaceous Women
Understanding the 20F Bra Size and Why the Right Fit Matters
Finding the perfect fit starts with understanding your bra size. A 20F bra size in Australian sizing means your band size is 20 and your cup size is F—ideal for women with a fuller bust who still want comfort, shape, and lift. We know every body is unique, and the right bra supports and shapes without compromise.
At The Foundation, our expert team includes certified D–K cup bra-fitters who specialise in plus-size bra fittings, ensuring you feel secure, confident, and supported all day long.
International Size Equivalents – 20F Bra Size Chart
| Region | Size Equivalent |
|---|---|
| Australia | 20F |
| UK | 42F |
| US | 42DDD |
| EU | 95G |
| France | 110G |
Our size chart is your go-to guide for confirming international conversions.
How to Measure Bra Size Using a Tape Measure
Not sure if you’re a 20F? Here’s a quick way to check at home using a tape measure:
- Measure your band: Place the tape snugly under your bust. Round to the nearest even number. This is your band size.
- Measure your bust: Measure around the fullest part of your chest. This gives your bust measurement.
- Subtract band from bust: a difference of 18–20cm equals an F cup size.
Need help? Try our virtual bra fitting services, where you'll connect with a trained fitter via video call for personalised guidance on measuring, size recommendations, and style advice—all from the comfort of your home. Or book a fitting appointment in-store with our friendly specialists.
Sister Sizes and Fit Alternatives to 20F
If you’re between sizes or want a different fit feel, try these sister sizes that offer the same cup volume with different band sizes:
Use our Bra Fit Guide or size chart to find your best match.
Best Bra Styles for Size 20F
- Full cup bras – Extra coverage and shaping for a secure hold
- Side support bras – Direct your bust forward for a streamlined silhouette
- Wirefree bras – For a relaxed, flexible fit without underwire
- Sports bras – With Low to High Impact support for every activity level
- T-shirt bras – Seamless and perfect for natural shaping under clothes
- Minimiser bras – Help reduce bust projection for a sleeker profile
- Strapless bras – Secure hold for off-shoulder styling
- Maternity bras and nursing bras – Gentle support for changing busts
Features like adjustable straps, hook and eye closure, and breathable materials like soft knit, sheer mesh, and knitted elastic make our bras both functional and comfortable.
Top Brands Stocked in 20F at The Foundation
We stock a curated mix of luxury and everyday lingerie brands known for their support and shaping in fuller sizes:
Why Shop With The Foundation?
- Free exchanges and a returns policy designed for ease. Eligible items must be returned within 30 days, unworn, with tags attached and in original packaging.
- Shipping Australia-wide with tracked service from our Sydney warehouse
- Buy Now, Pay Later options available
- Happy Customers: See our customer reviews for trusted feedback
Browse Our 20F Collection
Ready to feel the difference? Explore supportive, stylish bras designed for curvaceous women with fuller busts. Buy Now and enjoy a personalised fit from our team of specialists.
FAQs – 20F Bra Size Lingerie
What is a 20F in bust measurement?
Typically 113–115cm depending on the brand and fit style. Use a tape measure to confirm.
Do you offer plus-size sports bras in 20F?
Yes, we stock low, medium, and high impact options in 20F for different activity levels.
Can I book a virtual fitting for this size?
Absolutely. Our virtual fittings give you professional guidance from home.
Is there a strapless bra in size 20F?
Yes! We offer strapless options with reliable underwire construction and secure grip.
How does The Foundation support returns?
We offer free returns on eligible items with a clear returns policy in place. Items must be unworn, with tags attached, returned within 30 days in their original condition.