For your boobs.

Finding the right bra can be hard, but we’re here to help make it easier. Let us get to know you and your boobs a little better. We’ll find you something you’ll never want to take off.

Are you confident you already know your bra size?

Bra Fit Guide

Try on your favorite underwire bra now, then use the below as your guide.

Step 1: The Band

Your bra’s band provides most of its support (not the straps). Most women are wearing a band that’s too loose.

Your band should lay straight around your body, beneath your shoulder blades. If you’re able to pull your band more than two inches away from your back on the tightest hook, or if the band slides up your back, try a smaller band size.

Step 2: The Cup

Cups that are too big are pretty easy to spot. They wrinkle and gape. Cups that are too small are more common and trickier to recognize. A properly fitting cup holds all of your breast tissue without cutting into you.

If you feel like you’re in between cups, adjusting your straps can help. If you sized down in your band, you’ll need to go up a cup size to stay in the range you’re wearing now. This is called “sister sizing.” For example: a 34D and a 32E are sister sizes.

Step 3: The Wire

A properly fitting underwire bra offers shaping and support that a wireless bra cannot. But an ill-fitting wire can be really uncomfortable. If your wire digs into your side under your armpit, consider a larger cup size. If it digs into your chest, try a larger band size.

Step 4: The Straps

Your straps should be snug against your shoulders and stay in place as you move throughout your day. They should never dig in or feel uncomfortable.

If your straps are digging in, there’s a good chance your band is too big — consider trying a smaller band. If your straps are slipping off your shoulders, try adjusting them for tightness. One side may need more adjustments than the other (your boobs are sisters, not twins).

Find My CUUP Size

Start by putting on your best-fitting, non-padded, non-minimizing bra.
Remember to measure in inches.

Step 1: The Band

  1. With a measuring tape, measure around your ribcage directly below the wire of your bra.
  2. Ensure the tape is at the same level on your back, sides and front.
  3. Input that measurement into our size calculator in the "band" box.

Step 2: The Cup

  1. Loop the measuring tape around your back, just under your shoulder blades, then up around the fullest part of your bust
  2. Keep the tape level from end to end.
  3. Input that measurement into our size calculator in the "bust" box and calculate your size.

Compare My Size

Based on my most recent fitting or the best fitting bra in my drawer:

I am a CUUP size:

If you have questions, you can chat with our Fit Therapists or schedule a fitting. Sizing is personal – we’re here to help.

We’re sorry to say we don’t have your size – yet. Email us the size you’d like to see next. We’re listening!

CUUP’s core promise is to deliver the same experience of fit, function and style in every size. We refuse to cut corners when scaling our silhouettes, but are diligently developing our next chapter of sizing.

We recommend a lower cut silhouette for you. The Balconette and The Scoop are both calling your name!

You’ve been wearing bras with fuller coverage than CUUP’s styles. If you feel comfortable in a bra that covers more of you, we recommend trying one cup size larger.


Size Charts

Bras Bottoms

Size Conversion

Cup

CUUP US UK Europe France Italy Australia Japan
AA AA AA AA AA AA A
A A A A A A A B
B B B B B B B C
C C C C C C C D
D D D D D D D E
E DD or E DD E E E DD or E F
F DDD or F E F F F DDD or F G
G DDDD or G F G G G DDDD or G H
H H FF H H H H I

Band

CUUP US UK Europe France Italy Australia Japan
28 28 60 75 0 6 60
30 30 30 65 80 0 8 66
32 32 32 70 85 1 10 70
34 34 34 75 90 2 12 75
36 36 36 80 95 3 14 80
38 38 38 85 100 4 16 85
40 40 90 105 5 18 90
42 42 95 110 6 20 95

Bottoms

Size Waist Hip Equivalent
1 25-27 33-35 xs
2 27-29 35-37 s
3 29-31 37-39 m
4 31-33 39-41 l
5 33-35 41-43 xl

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