Cuup Bra Size Chart & Sizing
Minimal, unpadded and unlined by design: a DTC brand whose whole point is a broad range of thin, structured bras.
Cuup in numbers
Cuup built its range on unlined mesh and lace with structured wires: five core silhouettes in bands 30–44 and cups A–H, with fit sessions by video. Because there is no padding, shape matters more than usual: the Balconette and Plunge fit differently on the same body.
Your measured size in Cuup
How this is computed: your US size read straight onto the US label, then adjusted for how Cuup typically grades: true bands, true cups.
Where Cuup sits on the size grid
Cups A–H. Not every band–cup combination exists; the largest cups usually appear on mid-range bands only.
Best for:
- Unlined bras in a full range
- Minimal aesthetic
- Wearers who want the cup to fit exactly, without foam
Cuup bra size chart (US sizing)
Open the interactive size chart →
Cuup labels in United States notation. Rows are bands (US number, US equivalent in brackets); columns are cup letters as Cuup writes them. Each cell links to that size's guide.
| Band | A | B | C | D | DD | DDD | G | H |
|---|---|---|---|---|---|---|---|---|
| 30 (US 30) | 30A | 30B | 30C | 30D | 30DD | 30DDD | 30G | 30H |
| 32 (US 32) | 32A | 32B | 32C | 32D | 32DD | 32DDD | 32G | 32H |
| 34 (US 34) | 34A | 34B | 34C | 34D | 34DD | 34DDD | 34G | 34H |
| 36 (US 36) | 36A | 36B | 36C | 36D | 36DD | 36DDD | 36G | 36H |
| 38 (US 38) | 38A | 38B | 38C | 38D | 38DD | 38DDD | 38G | 38H |
| 40 (US 40) | 40A | 40B | 40C | 40D | 40DD | 40DDD | 40G | 40H |
| 42 (US 42) | 42A | 42B | 42C | 42D | 42DD | 42DDD | 42G | 42H |
| 44 (US 44) | 44A | 44B | 44C | 44D | 44DD | 44DDD | 44G | 44H |
Coverage is approximate to the brand's core collections; the largest cups typically exist on mid-range bands only. US DDD is written DDD here.
Does Cuup run small or big?
Cuup bands run true to size across US bands 30–44: start with your measured band on the loosest hook, and expect it to feel snug for the first week if you are coming from an add-inches size.
Cuup cups grade true to the measured difference from A to H: a gap or overflow in the measured letter is a shape signal, so change the cut before the size.
Cuup wires run narrow: good for projected, narrow-root shapes; wide roots may find them digging at the side. Straps: Slim, adjustable.
What to try at Cuup
| Line | Notes |
|---|---|
| The Balconette | open-top unlined mesh |
| The Plunge | deep unlined plunge |
| The Scoop | full-coverage unlined |
| The Demi | light coverage |
| Shape | Try |
|---|---|
| Full on bottom | The Balconette |
| Full on top | The Scoop |
| Shallow | The Demi |
| Projected | The Plunge |
| Wide-set | The Plunge |
Not sure of your shape? The fit guide explains the five shapes and how to recognize yours.
Cuup vs other brands
Side-by-side sizing, fit and your size in both. All comparisons →
Similar brands, different fit
The DTC brand that introduced half-cup sizes: memory-foam contour bras in one of the widest US size grids online.
Inclusive-range fashion lingerie: bold design across a genuinely broad grid, with construction that varies by line.
Basics-first DTC: a small line of everyday bras (lined, wireless and bralette) across a broad band and cup grid.
Cuup sizing: answered
What sizing system does Cuup use?
Cuup sizes in United States (US) convention: bands 30–44, cups A–H. US labels: a US 34C is a 34C here.
Does Cuup run big or small?
Cuup bands run true to size across US bands 30–44: start with your measured band on the loosest hook. Cuup cups grade true to the measured difference from A to H.
What is my size in Cuup?
Start with your measured size, convert it to US notation, then apply the brand's grading: start with your measured band on the loosest hook. The calculator on this page does both.
What is Cuup best known for?
The Balconette: open-top unlined mesh. Also: The Plunge (deep unlined plunge); The Scoop (full-coverage unlined).
Which Cuup bra suits my shape?
Full on bottom: The Balconette; Full on top: The Scoop; Shallow: The Demi; Projected: The Plunge; Wide-set: The Plunge.
Are Cuup sizes the same as ThirdLove?
Same notation where the systems match, different fit. Cuup: true band, true cup, narrow wire. ThirdLove: true band, generous cup, average wire. Convert the label, then apply the fit notes.
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