Best Bras for Small Band Large Cups

People with small band, big bust have a unique set of challenges when shopping for bras. Our customers often complain that finding small band, large cup bras is difficult, and the options tend to be too modest and conservative in design. 

We’ve rounded up some of our best bras for this size range. This article will discuss bra options that go down to at least a 30 band, and up to at least a G cup.

Simone & Kali

Simone and Kali are a pair of light-to-medium support bras. You can think of them as bralettes with an underwire. They both have medium-width underwire, and work best for full-on-bottom breast shapes. They start at a 30 band, and come in C-G cups.

Amy wears 30G in Simone

Amy wears 30G in Kali

Sidney & Zoe

If you are after a bra without center seams, Sidney and Zoe are your best picks. Zoe’s underwire is narrow, while Sidney’s is a bit more open. They both start at a 30 band. Zoe comes in D-G cups, while Sidney comes in C-H cups.

Amy wears 30G in Sidney

Tiana wears 30DD in Zoe

Sierra & Salma

If you want a projected bra that tacks in the center gore, Sierra and Salma are your match. They both have wide underwire. Salma is a full coverage style, while Sierra is a low-coverage balconette. Salma starts at a 30 band, and comes in D-J cups. Sierra starts at a 28 band, and comes in C-G cups.

Morgan wears 32DDD in Sierra

Angela wears 32DDD in Salma

Harper & Ivy

If you want a bra with light padding that hide the headlights, Harper and Ivy are for you. They feature light, cotton padding that won’t look bulky or give you too much volume. Both Harper and Ivy have narrow underwire and fit shallow. Harper starts at a 28 band, and comes in C-H cups. Ivy goes up to 30H, 32I, and 34J.

Morgan wears 32DDD in Harper

Angela wears 34DDD in Ivy


If you find that center gores dig in, try Phoebe. It’s an unlined full-coverage bra with a lower center gore. Phoebe provides a slightly minimizing look without any actual compression. Think of it like an unlined Ivy! It starts at a 30 band and goes up to H cup. 

Amy wears 30G in Phoebe

Iris & Parker

These bras are made with eco lace (recycled pre-consumer polyamide). Both have smooth, T-shirt friendly-ish cups. Iris fits like Zoe, but with deeper cups, while Parker is a front-close racerback with lower side wire. They both start at a 30 band. Iris goes up to H cup, while Parker goes up to G cup. 

Amy wears 30G in Iris

Amy wears 30G in Parker

Anya & Penny

Looking for dramatic lift and excellent separation? Pick up Anya or Penny. The former suits full-on-top (most of your breast tissue sits above the nipple) and the latter suits full-on-bottom. Both are available starting at a 30 band and go up to a K cup. 

Tatiana wears 34K in Anya

Joy wears 36H in Penny

Cate (Eco)

If you’re looking for something lightweight and wireless, try Cate (Eco). The center front panel keeps your breasts separated and prevents uniboob. There is no hardware except the hook-and-eye closure. This comfortable bra is made with eco lace and is available in 30-46 B-G. 

Christi wears 38DD in Cate (Eco)

Soft Sculpt

Soft Sculpt is our collection of wireless, second-skin bras. They’re made with a buttery soft fabric and zero pressure point design. Smooth and seamless, they’re perfect for wearing under any top. Soft Sculpt is offered in three styles (Cami, Back-Close, and Pull-Over) and in sizes 30-46 B-G. 

Amy wears 30G in our Back-Close

Amy wears 30DDD/G in our Cami


Peek-Proof is our collection of perfect everyday T-shirt bras. Made with the latest in bra science, the cups are lightweight and breathable, while offering moderate nipple coverage. Peek-Proof is offered in three styles (Demi, Plunge, and Full Coverage), all starting at a 30 band and going up to H cup. 

Bre wears 34D in Peek-Proof Full Coverage

Angela wears 30DDD in Peek-Proof Plunge

Yara & Gemma

Yara and Gemma are made with beautiful, soft lace. These bras will have you feeling supported and sexy. Both have a lower center gore for maximum sternum comfort. Yara was made for small band, big cups (28-42, DD-J) and Gemma was made for small band, medium cups (28-42, C-H).

Caitlyn wears 30I in Yara

Angela wears 30DDD in Gemma

We hope this article about small band, large cup bras was helpful.

Our size range doesn’t cover you yet? Visit our Product Roadmap to find out about new and upcoming products. It’s there to help you plan your future Understance purchases. 

Have ideas for future products? Let us know by emailing 

Frequently Asked Questions

For more answers to common bra questions, click here. 

1. What size is a small band big cup?

“Small band big cup” refers to bra sizes that have a smaller band measurement and larger cup size. In general, this means band sizes 34 and below and cup sizes DDD and above.

2. What bra style is right for me?

Take our style quiz or chat with a fit specialist to see which styles suit you best. Ultimately, the right bra style for you is the one that you feel the most comfortable and supported in.   

Different bra shapes and styles work for different breast shapes and sizes. We talk more about that here 

3. How do I know if my bra fits right?

We recommend checking the following for the right fit:  

  1. The bra band should stay put without being uncomfortably tight. It should be parallel to the floor, not riding up in the back. 
  2. Shoulder straps shouldn’t dig in, slip off, or cut into your armpits. 
  3. Your breasts should be contained in the cups without overflow or gaps. 
  4. The underwire should contour your breasts without poking anywhere. 
  5. Generally, the center gore should lie flat against your chest. However, if your breasts are touching when supported (there is no room for the center gore between your breasts), you are wearing a wireless bra with no center gore, or you have an inverted sternum, the center gore doesn’t need to lie flat against your chest. 

Remember to do the scoop and swoop every time you put on a bra. If you don’t know how to, watch our video tutorial here 

Read our complete fit check guide here. 

4. My bra doesn’t fit properly. What should I do?

There could be many reasons why your bra doesn’t fit properly. Consult our troubleshooting guide (it lists a number of common fit problems relating to the band, underwire, cups, and straps, and offers solutions) or book a virtual fitting (it’s a 10-20 minute 1-on-1 Zoom session with one of our fit specialists).   

2 thoughts on “Best Bras for Small Band Large Cups”

  1. Thank you for the useful and practical article you wrote One of the most attractive bras are bras with large cups and thin straps. This is one of the ideal bras for formal wear.

    1. Hi there, may I ask for the size you are looking for? We tend to stay away from thin straps for larger cups, because they don’t do as good of a job with support, and can cause neck/shoulder/upper back pain.

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