Freeform Tank Fit Finder

Bra Sizes Change Brand to Brand Because of the Band Number. This Tank Has No Band, So You Order It Like a T-Shirt.

Tap your usual bra size or your usual top size. Your tank size comes up in about 10 seconds, 32A to 44DD.

No band to measureSizes S to 3XL45-day fit guarantee

Find your tank size

No tape measure. No email. Pick one way below.

1. Your band number
2. Your cup letter
Add height and weight (optional)

Tap your band number and cup letter.

Your sizeL

Your Freeform size is L

Women your size say
Ruth K., 74, OhioWears a 34A bra · ordered size S
"I have been a 34A, a 32B and a 32C depending on the store. I ordered the Small like the finder said and it fits like it was made for me. Flat and smooth under a blouse."
Grace L., 61, WashingtonWears a 32B bra · ordered size S
"Small-busted women get forgotten. Most built-in-bra tops gape at the front on me. The Small sits flat against me and the cups actually meet me."
Dorothy H., 74, VermontWears a 32C bra · ordered size S
"I wear a size 6 blouse, so I took a Small. That was the whole fitting. It came, I pulled it on over my head, and that was that."
Joan P., 72, MichiganWears a 34C bra · ordered size M
"Every bra I own says a different size. I tapped 34C, got Medium, and the Medium is right. First thing I have bought online in years that I did not send back."
Helen S., 71, OregonWears a 36A bra · ordered size M
"My band is a 36 but there is not much up top. The Medium is snug at the bust and easy at the waist, which is exactly how I like it."
Karen T., 55, ColoradoWears a 34B bra · ordered size M
"I am a size 10 in everything, so Medium. It really is that simple, and the wide straps stay put when I reach up to the top shelf."
Maria G., 66, CaliforniaWears a 36C bra · ordered size L
"Fitted twice at department stores, 36C and 38B. The finder said Large for both. Large it is, and I now own four of them."
Sharon P., 66, TennesseeWears a 34DD bra · ordered size L
"A 34DD is a nightmare size to buy. Narrow back, full front. With no band my back does not matter, and the Large holds the front all day."
Carol B., 70, PennsylvaniaWears a 36D bra · ordered size L
"I am a 36D and a size 14 top. Both said Large. Nothing to exchange, nothing to return."
Barbara M., 64, FloridaWears a 38D bra · ordered size XL
"I ordered XL from the chart and it was right the first time. The cups are sewn in, so there is no pad to fish back into place after the wash."
Angela W., 63, GeorgiaWears a 40C bra · ordered size XL
"I was sure a 40C would need two sizes to try. The finder said XL, the XL fit, and I went back for two more colours."
Jean F., 72, KansasWears a 36DD bra · ordered size XL
"Stores could never agree on me, 36DD or 38D. Both are XL here, so for once the argument did not matter."
Denise W., 61, North CarolinaWears a 40DD bra · ordered size 2XL
"I bought the 2XL because the chart said so, and it holds a 40DD without a single thing digging into my ribs."
Rosa M., 58, TexasWears a 38DDD bra · ordered size 2XL
"I have returned more bras than I have kept. This one I did not have to think about. 2XL, pulled it on, kept it."
Geraldine A., 79, IowaWears a 42C bra · ordered size 2XL
"My daughter ordered for me using the finder. 2XL. It goes on over my head, no hooks, and it fits under my cardigans."
Loretta J., 68, AlabamaWears a 42DDD bra · ordered size 3XL
"Big women are always told to come in and get fitted. I did not have to. I tapped 42 and DDD, got 3XL, and it holds me up properly."
Gloria R., 64, ArizonaWears a 44DD bra · ordered size 3XL
"A 44DD in a tank top that actually supports. I wear a size 24 top and the 3XL fits like my favourite T-shirt."
Linda C., 69, MarylandWears a 40G bra · ordered size 3XL
"Nobody makes a G that is comfortable. The 3XL has real cups sewn in and the straps are wide enough that my shoulders do not ache by lunch."
Get My Tank in Size L →Buy 3 Get 2 Free · free US shipping · 45-day fit guarantee
Three women of different sizes wearing the same tank
Three women, three sizes, one tank. Each ordered by her usual top size.

Four Bra Fittings Gave Pat Four Different Bra Sizes

Pat
Pat, 69Retired school secretary, Dayton, Ohio

In one year I was measured four times. A department store said 36C. A lingerie shop said 38B. A bra specialist said 34DD. An online quiz said 36D. I own a bra in every one of those sizes, and not one of them fits the way it did in the fitting room.

Department store36CTank size L
Lingerie shop38BTank size L
Bra specialist34DDTank size L
Online quiz36DTank size L

When I typed all four into the finder above, every one came back Large. I wear a size 14 blouse, which is also Large. I ordered the Large. It fits. That was the first piece of underwear I have bought online in six years that I did not send back.

Pat at home in her Large tank in coffee
Pat in her Large, in coffee.
Four bra tags: 36C, 38B, 34DD, 36D
Pat's four bras. Four fittings, four sizes.

Why Your Bra Size Keeps Changing: the Band Number Is Measured Differently by Every Brand

The number in a bra size is meant to be the measurement round your ribcage, just under the bust. Some brands use that measurement as it is. Others add four or five inches to it first. So a woman with a 33-inch ribcage is a 34 at one store and a 38 at the next, on the same day.

The letter is not a size on its own. It is the difference between your bust and that band number, one inch per letter. Change the band and the letter changes with it. A 34DD, a 36D and a 38C hold the same cup, which is why one fitter calls you a D and the next calls you a C.

Then there is the elastic. Every brand cuts its band to a different tightness, and every band loosens a little with each wash, so fitters size you down to make a new bra feel tight enough. The tag ends up describing the elastic, not you.

Two bras both labelled 36C with bands 3 inches apart
Two bras sold as 36C. The bands are three inches apart.

That is why you have a drawer full of bras in four sizes and a stack of return labels. It was never your body changing week to week. It was the band.

The Freeform Tank Has No Band, So Only Your Bust and Top Size Matter

  • 1

    No band means no band number

    Nothing goes round your ribcage, so the number that changes from brand to brand is not on this tank at all. There is nothing to measure tight or loose.

  • 2

    The cups are sewn in and sized with the body

    Shaped cups are stitched into the lining and grow with each size, S through 3XL, the same way a T-shirt's chest does. They cannot shift or fold in the wash.

  • 3

    Two-inch straps with nothing to adjust

    The straps are as wide as three fingers and fixed in place. No sliders to set, no hooks to pick a row on.

  • 4

    Stretch body, cut straight

    The fabric stretches four ways and the body is cut straight through the waist, so a size covers a real range of women, not one exact measurement.

The tank laid next to a T-shirt
Sized like the T-shirt beside it: by your top size.
Inside the tank: cups sewn into the lining
Inside: the cups are stitched into the lining.

The Full Bra-Size to Tank-Size Chart

Find your usual bra size in the middle column. That row is your tank size.

TankYour bra sizeBustTop size
S32 A–C
34 A
33–35 in4–6
M34 B–C
36 A
35–37 in8–10
L34 D–DD
36 B–D
38 A–B
37–40 in12–14
XL36 DD–DDD
38 C–D
40 A–C
40–43 in16–18
2XL38 DD–DDD
40 D–DD
42 B–D
43–46 in20–22
3XL40 DDD–G
42 DD–DDD
44 C–DD
46–50 in24–26
Between two sizes? Take the larger. The cups are sewn in, so size to your bust. The body stretches four ways and is cut straight through the waist, so the larger size still sits close.
96%of women kept the first size they ordered from the finder. The rest swapped it free.
45DAY FIT

The 45-day fit guarantee

Wear it for up to 45 days. If the size is wrong, we exchange it free. If you don't love it, you get your money back. Sizing is our problem, not yours.

The Freeform Tank

11,482 reviews · 6 colours · S to 3XL

1 TankTry one
£29.99£59.99 · free US shipping
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3 TanksBuy 2 Get 1 Free
£59.99£179.99 · £19.99 each
BEST VALUE
5 TanksBuy 3 Get 2 Free
£89.99£299.99 · £17.99 each
Choose My Colours →Free US shipping · 45-day fit guarantee Not sure of your size? Use the finder