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Brand sizing

Wacoal Japan & Wing Bra Size Chart

The parent company's home-market grading: EU-style bands and Japanese cup letters graded in 2.5 cm steps: a distinct system from Wacoal America.

At a glance

Wacoal Japan / Wing in numbers

Native sizing
EU · European
Convert your US size into EU notation before ordering; the calculator below does it.
Band range · shown on the US band scale
6065707580859095100105
JP 65–90 (EU-style) (EU numbering)
Cup range · EU letters
ABCDEFGHIJK
A–I (JP letters, 2.5 cm steps)
OriginJapan
Founded1949
TierMid-to-premium
Alpha sizesNo

In Japan, Wacoal (and its Wing sub-brand) grade cups in 2.5 cm steps on JIS-style charts, so a JP letter can sit one step above the EU letter at the same measurements. Bands are EU-style (65, 70, 75…). Fit is drafted for a smaller frame; wearers converting from US or UK sizes typically go up in cup.

Sub-brands and lines: Wing, Salute, Lasée.

Your size

Your measured size in Wacoal Japan / Wing

Measured size US 34CNot sure? Measure →
In Wacoal Japan / Wing · EU sizing
34C
Band
Cup
Fit
Also try

Read the size guide →

How this is computed: your US size converted into EU notation, then adjusted for how Wacoal Japan / Wing typically grades: true bands, small cups.

Range

Where Wacoal Japan / Wing sits on the size grid

US band coverage (approx.)
283032343638404244

Cups A–I (JP letters, 2.5 cm steps). Not every band–cup combination exists; the largest cups usually appear on mid-range bands only.

Best for:

  • Japanese sizing reference
  • Narrow frames
  • Fine construction
Size chart

Wacoal Japan / Wing bra size chart (EU sizing)

Open the interactive size chart →

Wacoal Japan / Wing labels in European notation. Rows are bands (EU number, US equivalent in brackets); columns are cup letters as Wacoal Japan / Wing writes them. Each cell links to that size's guide.

Coverage is approximate to the brand's core collections; the largest cups typically exist on mid-range bands only. Convert US DDD → EU F before reading.

Fit

Does Wacoal Japan / Wing run small or big?

1Band

Wacoal Japan / Wing bands run true to size across EU bands 65–90: 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.

2Cup

Wacoal Japan / Wing cups grade small from A to I: try your measured cup and one up, and read a floating gore as the cup, not the band.

3Wire & straps

Wacoal Japan / Wing wires run narrow: good for projected, narrow-root shapes; wide roots may find them digging at the side. Straps: Fine.

Sizing quirks to know· JP cup letters may sit one step above EU at the same measurements· Frame is drafted narrower: wires narrow· Not interchangeable with Wacoal America sizes
Lines and shapes

What to try at Wacoal Japan / Wing

Key lineswhat each is for
LineNotes
Wingeveryday and lace
Salutepremium lace
Laséefashion
CW-Xsport
By breast shapestart here
ShapeTry
Full on bottomWing balconette
Full on topSalute full cup
ShallowWing molded
ProjectedSalute
Wide-setLasée plunge

Not sure of your shape? The fit guide explains the five shapes and how to recognize yours.

Head to head

Comparisons in Wacoal Japan’s neighbourhood

Side-by-side sizing, fit and your size in both. All comparisons →

Answered

Wacoal Japan / Wing sizing: answered

What sizing system does Wacoal Japan / Wing use?

Wacoal Japan / Wing sizes in European (EU) convention: bands JP 65–90 (EU-style), cups A–I (JP letters, 2.5 cm steps). Convert your US size into EU notation before ordering.

Does Wacoal Japan / Wing run big or small?

Wacoal Japan / Wing bands run true to size across EU bands 65–90: start with your measured band on the loosest hook. Wacoal Japan / Wing cups grade small from A to I: try your measured cup and one up.

What is my size in Wacoal Japan / Wing?

Start with your measured size, convert it to EU notation, then apply the brand's grading: start with your measured band on the loosest hook. try your measured cup and one up. The calculator on this page does both.

What is Wacoal Japan / Wing best known for?

Wing: everyday and lace. Also: Salute (premium lace); Lasée (fashion).

Which Wacoal Japan / Wing bra suits my shape?

Full on bottom: Wing balconette; Full on top: Salute full cup; Shallow: Wing molded; Projected: Salute; Wide-set: Lasée plunge.

Are Wacoal Japan / Wing sizes the same as Wacoal?

Same notation where the systems match, different fit. Wacoal Japan / Wing: true band, small cup, narrow wire. Wacoal: true band, true cup, average wire. Convert the label, then apply the fit notes.

Brand notes reviewed by the Brasize.ai fit team
BasisBrand size charts and typical grading; independent of the brandRangesCore collections: individual styles varyUpdatedJune 2026

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