Size Guide
Snug is sold in real band and cup sizes — band 30 to 48, cups A through H. A 34G here is an actual 34G, not a letter borrowed from a t-shirt tag. Two numbers and five minutes with a tape measure is all it takes.
How to measure — three steps
- Band. Wearing an unpadded bra or nothing on top, run the tape around your ribcage directly under the bust. Pull it snug and level, breathe out, and read the number in inches. Round up to the nearest even number — that is your band.
- Bust. Stand straight and run the tape around the fullest part of your bust, keeping it level across your back. Do not pull tight. Read the number in inches.
- Cup. Subtract the band from the bust. 1" = A · 2" = B · 3" = C · 4" = D · 5" = DD/E · 6" = DDD/F · 7" = G · 8" = H.
Example: 36" under the bust and 43" across the bust is a 7" difference — a 36G.
Find your size
Read down to your band, then across to the bust measurement you took. Every number in the table is a bust measurement in inches.
| Band (underbust) |
A | B | C | D | DD/E | DDD/F | G | H |
|---|---|---|---|---|---|---|---|---|
|
30 29–30.5" |
30.5–31.5 | 31.5–32.5 | 32.5–33.5 | 33.5–34.5 | 34.5–35.5 | 35.5–36.5 | 36.5–37.5 | 37.5–38.5 |
|
32 31–32.5" |
32.5–33.5 | 33.5–34.5 | 34.5–35.5 | 35.5–36.5 | 36.5–37.5 | 37.5–38.5 | 38.5–39.5 | 39.5–40.5 |
|
34 33–34.5" |
34.5–35.5 | 35.5–36.5 | 36.5–37.5 | 37.5–38.5 | 38.5–39.5 | 39.5–40.5 | 40.5–41.5 | 41.5–42.5 |
|
36 35–36.5" |
36.5–37.5 | 37.5–38.5 | 38.5–39.5 | 39.5–40.5 | 40.5–41.5 | 41.5–42.5 | 42.5–43.5 | 43.5–44.5 |
|
38 37–38.5" |
38.5–39.5 | 39.5–40.5 | 40.5–41.5 | 41.5–42.5 | 42.5–43.5 | 43.5–44.5 | 44.5–45.5 | 45.5–46.5 |
|
40 39–40.5" |
40.5–41.5 | 41.5–42.5 | 42.5–43.5 | 43.5–44.5 | 44.5–45.5 | 45.5–46.5 | 46.5–47.5 | 47.5–48.5 |
|
42 41–42.5" |
42.5–43.5 | 43.5–44.5 | 44.5–45.5 | 45.5–46.5 | 46.5–47.5 | 47.5–48.5 | 48.5–49.5 | 49.5–50.5 |
|
44 43–44.5" |
44.5–45.5 | 45.5–46.5 | 46.5–47.5 | 47.5–48.5 | 48.5–49.5 | 49.5–50.5 | 50.5–51.5 | 51.5–52.5 |
|
46 45–46.5" |
46.5–47.5 | 47.5–48.5 | 48.5–49.5 | 49.5–50.5 | 50.5–51.5 | 51.5–52.5 | 52.5–53.5 | 53.5–54.5 |
|
48 47–48.5" |
48.5–49.5 | 49.5–50.5 | 50.5–51.5 | 51.5–52.5 | 52.5–53.5 | 53.5–54.5 | 54.5–55.5 | 55.5–56.5 |
Choose your true band
The fabric is 91% nylon and 9% spandex — it is smooth and it moves with you, but it has little stretch by design, because the stretch is what makes a wireless band ride up. Take the band your tape measure gives you. Do not size the band down to get a tighter fit, and do not size it up because a stretchy bra fitted you that way.
Between two bands?
Take the smaller band and go up one cup — 36F and 34G hold the same volume. The band should sit level all the way round and you should be able to slide two flat fingers under it at the back, no more.
Sister sizes
Going up one band means going down one cup, and the other way round. 34G ≈ 36F ≈ 32H all carry about the same cup volume — handy if your usual size is sold out, or if your band feels right but the cup does not.
Still not sure?
Order the size your measurements say, try it at home, and if it is not right you have 60 days of free exchanges — see Exchanges & Returns. Or send us your two numbers via the form on our Contact page and we will tell you where to start.
Every band comes with a four-row hook-and-eye back, and a bra extender is included in the box, so there is room to adjust as your body changes.