16I Bra Size – Supportive Styles, Perfect Fit
Understanding the 16I Bra Size
Shopping for a 16I bra size in Australia means you're looking for a band size of 16 (equivalent to a size 38 underbust in centimetres) with a cup volume of I – a fuller bust that requires structured support and exceptional fit. The band size must sit firmly yet comfortably around the body, while the cup offers full coverage and lift without spillage or gaping. Bra cup sizes progress alphabetically from A upward, so an I cup is several volumes larger than an A cup. The 16I falls within the Australian size system, which differs from the US/UK/Canada size and European size systems.
International Bra Size Conversion Chart
Here's how the 16I Australian size compares in the international bra size chart:
| Region | Equivalent Size |
|---|---|
| Australia / NZ Size | 16I |
| UK | 38G |
| US | 38I |
| EU | 85I |
| France (FR) | 100I |
This size conversion chart helps you navigate the different bra size systems globally. International sizing can vary significantly, so checking conversions is essential—especially when shopping online. It ensures you're selecting a bra that will fit comfortably and provide the support you need, no matter the brand's origin.
How to Measure Your Bra Size
- Band size: Measure around your ribcage directly under the bust, snug but not tight. Round to the nearest even number.
- Bust measurement: Measure around the fullest part of your bust while wearing a non-padded bra.
- Use our bra size chart to find your corresponding cup size based on the difference between bust and band measurements.
Understanding your body size in relation to clothing size is key to getting the perfect fit. If you're unsure, our expert team is always happy to assist.
Sister Sizes and Fit Flexibility
Trying sister sizes can resolve issues like band tightness or cup overflow while maintaining proper support. To test if a sister size is working, check that the band sits level around your body, the cups lie flat without gaping, and the bra feels snug but not restrictive. It’s a helpful strategy when finding the right fit across different brands and styles.
Recommended Bra Styles for 16I
At The Foundation, we understand the difference a well-fitted bra can make. For a 16I size, we recommend:
- Lightly padded bras – ideal for smooth shaping under structured garments like blouses or fitted tops. Great for balanced or hourglass shapes.
- Wireless styles – perfect for relaxed wear, offering gentle support without underwire. Great for apple or pear-shaped bodies.
- Seamless designs – best under clingy clothing, giving a sleek, invisible finish.
- Full coverage bras – excellent for curvier silhouettes, delivering lift and containment under everyday outfits.
All these options are available in our 16I bra size collection, curated to support your needs and lifestyle.
Brands That Stock 16I at The Foundation
- Chantelle
- PrimaDonna
- Samanta
- Anita
These brands are known for their premium fit and support for larger cup sizes.
Shop with Confidence
Your fit journey starts here. With expert fitting support, accurate underwear size systems, and trusted labels, The Foundation is your go-to for the right fit. All orders are shipped in discreet packaging for your privacy, and our dedicated customer support team is ready to help with any questions or fitting advice. Shop Now and discover the comfort of a bra that works with your body, not against it. Or visit our welcoming in-store team for a personalised experience.
FAQs
What does a 16I bra size mean?
It refers to a 16 band and I cup in the Australian size system – ideal for a fuller bust needing structured support.
How do I measure myself for a 16I?
Use a tape measure to get your band and bust sizes, then check our bra size chart to determine your fit. If you're stuck, our friendly team can help guide you.
What are the sister sizes for 16I?
Sister sizes include 14J (tighter band, bigger cup) and 18H (looser band, smaller cup). These alternatives help fine-tune your fit when you're in between sizes.
Are different styles available in 16I?
Yes, our collection includes lightly padded, seamless, wireless, and full coverage styles – all designed to flatter and support a fuller bust.
Can I return a bra if it doesn’t fit?
Yes! Visit any of our store locations for a personalised fitting experience or shop online with peace of mind by checking our return policy.