CUUP Adaptive Swim Sizing is a unique system developed by CUUP to allow for one top to work for multiple sizes and still deliver the perfect fit and support you’re used to with your CUUP bra. Using our custom Slide & Set™ back adjuster, your CUUP swim top will fit with precision without any fussy ties or knots.
Size Chart
How to measure:
With a soft measuring tape and an unlined bra or thin tank top, start by measuring your under-bust, where your
band will sit. Wrap the tape around your body, keeping it taut but not tight. Take a deep breath in and out to
allow your rib cage to settle, take note of the measurement.
Then, grab your cross-cup measurement. Lay the measuring tape at the center of your chest, then measure across
the fullest part of your breast, stopping where the breast tissue ends at your side.
With both measurements, see where they line up on our size chart, rounding up if you're between inches.
Wired Bras
| UNDERBUST MEASUREMENT | WIRED BRAS | CROSS CUP MEASUREMENT | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6.5-6 7/8" | 7-7 3/8" | 7.5 - 7 7/8" | 8-8 3/8" | 8.5-9" | 9-9.5" | 9.5-10" | 10-10.5" | 10.5-11" | 11-11.5" | 11.5-12" | 12-12.5" | 12.5-13" | 13-13.5" | 13.5-14" | |||
| 25-27" | 30 | 30A | 30B | 30C | 30D | 30E | 30F | 30G | 30H | ||||||||
| 27-29" | 32 | 32A | 32B | 32C | 32D | 32E | 32F | 32G | 32H | ||||||||
| 29-31" | 34 | 34A | 34B | 34C | 34D | 34E | 34F | 34G | 34H | ||||||||
| 31-33" | 36 | 36A | 36B | 36C | 36D | 36E | 36F | 36G | 36H | ||||||||
| 33-35" | 38 | 38A | 38B | 38C | 38D | 38E | 38F | 38G | 38H | ||||||||
| 35.5-37.5" | 40 | 40B | 40C | 40D | 40E | 40F | 40G | ||||||||||
| 37.5-39.5" | 42 | 42C | 42D | 42E | 42F | ||||||||||||
| 39.5-41.5" | 44 | 44C | 44D | 44E | 44F | 44G | |||||||||||
| 41.5-43.75" | 46 | 46C | 46D | 46E | 46F | ||||||||||||
| 43.5-45.75" | 48 | 48C | 48D | 48E | 48F | ||||||||||||
| 45.5-47.75" | 50 | 50C | 50D | 50E | |||||||||||||
Wireless Bras
| WIRELESS BRAS | CUP MEASUREMENT | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E (DD) | F (DDD) | G (DDDD) | ||||
| BAND | 30 | - | - | XS / A-C Cup | XS / D-E Cup | XS / D-E Cup | XS / F-G Cup | XS / F-G Cup | ||
| 32 | XS / A-C Cup | XS / A-C Cup | S / A-C Cup | S / D-E Cup | S / D-E Cup | S / F-G Cup | S / F-G Cup | |||
| 34 | S / A-C Cup | S / A-C Cup | M / A-C Cup | M / D-E Cup | M / D-E Cup | M / F-G Cup | M / F-G Cup | |||
| 36 | M / A-C Cup | M / A-C Cup | L / A-C Cup | L / D-E Cup | L / D-E Cup | L / F-G Cup | L / F-G Cup | |||
| 38 | L / A-C Cup | L / A-C Cup | XL / A-C Cup | XL / D-E Cup | XL / D-E Cup | XL / F-G Cup | XL / F-G Cup | |||
| 40 | XL / A-C Cup | XL / A-C Cup | 1X / A-C Cup | 1X / D-E Cup | 1X / D-E Cup | 1X / F-G Cup | 1X / F-G Cup | |||
| 42 | 1X / A-C Cup | 1X / A-C Cup | 2X / A-C Cup | 2X / D-E Cup | 2X / D-E Cup | 2X / F-G Cup | 2X / F-G Cup | |||
International
| 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 | D |
| 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 |
BOTTOMS
| Size | Waist | Low Hip |
|---|---|---|
| 1/XS | 25"-26" | 35"-36" |
| 2/S | 27"-28" | 37"-38" |
| 3/M | 29"-30" | 39"-40" |
| 4/L | 31.5"-33" | 41.5"-43" |
| 5/XL | 34.5"-36" | 44.5"-46" |
| 6/1X | 37"-41" | 46"-50" |
| 7/2X | 41"-45" | 50"-54" |
| 8/3X | 45"-49" | 54"-58" |
SWIM BOTTOMS
Note: Swim bottoms are sized according to underwear size. Customers are encouraged to understand their specific measurements, using our underwear sizing chart.
| Size | Waist | Low Hip |
|---|---|---|
| 1/XS | 25"-26" | 35"-36" |
| 2/S | 27"-28" | 37"-38" |
| 3/M | 29"-30" | 39"-40" |
| 4/L | 31.5"-33" | 41.5"-43" |
| 5/XL | 34.5"-36" | 44.5"-46" |
| 6/1X | 37"-41" | 46"-50" |
| 7/2X | 41"-45" | 50"-54" |
| 8/3X | 45"-49" | 54"-58" |
-
SWIM Tops & Wired ONE-Pieces
Note: Swim tops and one-pieces are sized according to cup & band size. Customers are encouraged to understand their specific measurements, using our bra sizing chart.
Size In Swim Cup Sizes Served 1 30B / 32A / 30A 2 30C / 32B / 34A 3 30D / 32C 4 34B / 36A 5 30E / 32D 6 34C / 36B 7 30F / 32E 8 34D / 36C 9 38B / 40A / 38A 10 30G / 32F 11 34E / 36D 12 38C / 40B / 42A 13 30H / 32G 14 34F / 36E 15 38D / 40C / 42B 16 32H / 34G 17 36F / 38E 18 40D / 42C 19 34H / 36G 20 38F / 40E 21 36H / 38G 22 40F / 42E / 44D 23 38H / 40G -
Why did CUUP size this way?
Wireless ONE-Pieces
| WIRELESS ONE-PIECES | CUP MEASUREMENT | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E (DD) | F (DDD) | G (DDDD) | ||||
| BAND | 30 | - | - | XS / A-C Cup | XS / D-E Cup | XS / D-E Cup | XS / F-G Cup | XS / F-G Cup | ||
| 32 | XS / A-C Cup | XS / A-C Cup | S / A-C Cup | S / D-E Cup | S / D-E Cup | S / F-G Cup | S / F-G Cup | |||
| 34 | S / A-C Cup | S / A-C Cup | M / A-C Cup | M / D-E Cup | M / D-E Cup | M / F-G Cup | M / F-G Cup | |||
| 36 | M / A-C Cup | M / A-C Cup | L / A-C Cup | L / D-E Cup | L / D-E Cup | L / F-G Cup | L / F-G Cup | |||
| 38 | L / A-C Cup | L / A-C Cup | XL / A-C Cup | XL / D-E Cup | XL / D-E Cup | XL / F-G Cup | XL / F-G Cup | |||
| 40 | XL / A-C Cup | XL / A-C Cup | 1X / A-C Cup | 1X / D-E Cup | 1X / D-E Cup | 1X / F-G Cup | 1X / F-G Cup | |||
| 42 | 1X / A-C Cup | 1X / A-C Cup | 2X / A-C Cup | 2X / D-E Cup | 2X / D-E Cup | 2X / F-G Cup | 2X / F-G Cup | |||
Lounge
| Size | Bust | Waist | Hip |
|---|---|---|---|
| XS (0-2) | 32"-33" | 25"-26" | 35"-36" |
| S (4-6) | 34"-35" | 27"-28" | 37"-38" |
| M (8-10) | 36"-37" | 29"-30" | 39"-40" |
| L (12-14) | 38.5"-40" | 31.5"-33" | 41.5"-43" |
| XL (14/16) | 41.5"-43" | 34.5"-36" | 44.5"-46" |
| XXL / 1X (18/20) | 43"-47" | 37"-41" | 46"-50" |
| XXXL / 2X (22/24) | 47"-51" | 41"-45" | 50"-54" |
| 3X (26/28) | 51"-53" | 45"-49" | 54"-58" |