What Is The Smallest Bra Size?

What Is The Smallest Bra Size?

When it comes to finding the perfect bra, many women with smaller busts face a unique set of challenges. Ever wondered, “What is the smallest bra size?” you are not alone. Finding the right fit for smaller busts can be quite an adventure, but don’t worry; we’re here to navigate through it together. This guide will help you understand the nuances of bra sizing, explore options for petite sizes, and introduce you to ThirdLove’s approach to bras for small breasts.

Understanding Bra Sizing

First things first, bra sizing can seem like a puzzle, but once you get the hang of it, it’s pretty straightforward. Bra size consists of the band size (the number) and the cup size (the letter). The band size is the measurement around your ribcage directly under your breasts, and the cup size refers to the difference between your bust measurement (around the fullest part of your breasts) and your band size.

For example, if your band size is 32 inches and your bust measurement is 34 inches, the difference is 2 inches, which translates to a cup size of A. In this case, your bra size would be 32A.

Smallest Standard Bra Sizes

When it comes to the smallest bra cup size, AA is generally considered the smallest in standard sizing. However, you can get AAA with some specialty brands. Band sizes traditionally start from 30 or 32, although some specialty brands go as low as 28. Bra sizes are relative, so sometimes a 30A and a 32AA might feel similar because when the band size increases, the cup volume changes even with the same letter.

ThirdLove’s Approach to Small Sizes

At ThirdLove, we believe small-busted women want the same level of attention to detail in both comfort and style as everybody else. That is why we offer a wide range of sizes, including bands starting at 30 and cups as small as AA. Our half-cup sizes also cater to women who fall between standard measurements, ensuring a fit that’s tailored to you. 

Best ThirdLove Bras For Small Breasts

24/7 Classic T-Shirt Bra

Our bestselling T-shirt bra is perfect for smaller busts. It is designed to provide a natural lift and shape without adding bulk. The foam cups are just thick enough to give you a smooth look under any top, making it ideal for daily wear.

24/7® Classic T-Shirt Bra

$72

Zero Edge™ Wireless Push-Up Bra

We reimagined the push-up bra to give ultimate cleavage - comfortably, without an underwire. Our wireless push-up bra adds one full cup size and this ultra-lightweight style is comfortable and smooth under all clothes. Perfect for those with smaller busts looking for gravity-defying lift!

Zero Edge™ Wireless Push-Up Bra

$54

Classic Uplift Plunge Bra

This style features a deeper neckline and subtle lifting from removable pads, perfect for smaller cup sizes. The plunge design works beautifully under low-cut tops, providing a natural boost and comfortable daily support.

24/7® Classic Uplift Plunge Bra

$72

Form 360 Fit Wireless Bra

If comfort is your priority, this wireless bra is like a hug for your chest; It’s designed to provide support without the constriction of underwires. The fabric contours to your body for a seamless fit, which is great for those who prefer a lighter, more natural feel.

Tips for Finding the Right Bra for Small Busts

  • Start by understanding your unique measurements. ThirdLove’s Fit Finder Quiz is a great place to start. You can discover your true size and style preference in minutes by answering a few questions.
  • Look for styles with shallow cups that won’t gap.
  • Consider lightly lined bras for smooth shaping.
  • Try different styles to see what makes you feel most confident.

So, what is the smallest bra size? It’s all about finding the perfect fit for you, whether that’s 28A, 30AA, or any variation in between. At ThirdLove, we’ve got you covered with bras designed specifically for the unique needs of smaller busts. We offer a wide range of sizes and styles to flatter everybody, and our commitment to fit ensures that you’ll find a bra that makes you feel amazing.