size & fit guide

Bra Size Chart

Underbust

INCHES 25–26" 27–28" 29–30" 31–32" 33–35" 36–38" 39–41"
30–31" 30A
31–32" 30B
32–33" 30C 32A
33–34" 30D 32B
34–35" 30DD 32C 34A
35–36" 30DDD/F 32D 34B
36–37" 30G 32DD 34C
37–38" 32DDD/F 34D 36A
38–39" 32G 34DD 36B
39–40" 34DDD/F 36C 38B
40–41" 34G 36D 38C
41–42" 36DD 38D 40B
42–43" 36DDD/F 38DD 40C
43–44" 36G 38DDD/F 40D 42B
44–45" 38G 40DD 42C
45–46" 40DDD/F 42D
46–47" 40G 42DD
47–48" 42DDD/F

Bust (Fullest Part)

Size & Fit FAQs

Bra sizing is determined by band size and cup size.

Step 1: Measure Your Band
Measure by wrapping a soft measuring tape around your ribcage, directly under the bust.

If the measurement is odd, add 5.
If the measurement is even, add 4.

Example
31 inches + 5 = 36 band
32 inches + 4 = 36 band

Step 2: Measure Your Bust
Measure around the fullest part of the bust, keeping the tape level.

Subtract your band size from this measurement to determine cup size.

Example
39 inches − 36 band = 3 inches
3 inches = C cup

Your size would be 36C.

Sister sizes have the same cup volume with different band sizes.

If your band feels tight but the cups fit perfectly, try going up a band and down a cup (ex: 34C → 36B).

If your band feels loose, try going down a band and up a cup (ex: 34C → 32D).

Bra sizing is available in 44 sizes ranging from 30B to 42DDD.

Select styles are available in XS to 3XL or enhanced sizing.

Availability varies by style.

You may submit size requests by emailing support@mylkstudios.com.

Tighten the straps first.

If slipping continues, a smaller band or a cup shape with closer-set straps may improve fit.

The band should feel secure but not restrictive.

If it feels uncomfortable, try a larger band or a sister size.

This typically indicates excess volume.

Try a smaller cup size.

This indicates insufficient volume.

Try a larger cup size.

Try a larger cup size.

This usually means the band is too large.

Try a smaller band size.

ADD TO LUST LIST