Find your perfect fit in two minutes. Measure yourself with a soft tape measure, then use the size finders and the size chart below.

Between two sizes? Choose the larger one. Still unsure? Email contact@poiseandform.com with your measurements and we will help you choose.

Find your fit

Which size am I? (bust)

For built-in bra tops: measure around the fullest part of your bust.

SizeBust (cm)(in)Fits cup (UK)
S 76–89 30–3532E-32F, 34C-34DD, 36A-36B
M 89–94 35–3734E-34F, 36C-36DD, 38A-38B
L 94–99 37–3934FF-34G, 36E-36F, 38C-38DD
XL 99–104 39–4136FF-36H, 38E-38H, 40C-40DD
2XL 104–112 41–4438HH-38J, 40E-40H, 42D-42G
3XL 112–119 44–4744D-44H, 46C-46G
4XL 119–124 47–4948D-48F
5XL 124–140 49–55

Between two sizes? Choose the larger one. Still unsure? Email us your measurements and we will help.

Find your fit

Which size am I? (waist)

For shaping briefs: measure your waist at the narrowest point.

SizeWaist (cm)(in)
XS 69–73.5 27–29
S 74–78.5 29–31
M 79–83.5 31–33
L 84–88.5 33–35
XL 89–93.5 35–37
2XL 94–99 37–39
3XL 99.5–124 39–49

Between two sizes? Choose the larger one. Still unsure? Email us your measurements and we will help.

Built-in bra tops: size chart

Measure around the fullest part of your bust, then pick the matching size. Cup sizes are UK sizes (US DDD = UK E, US G = UK F, US H = UK FF).

SizeBustFits cup (UK)
Sup to 89 cm (35 in)32E-32F, 34C-34DD, 36A-36B
M89-94 cm (35-37 in)34E-34F, 36C-36DD, 38A-38B
L94-99 cm (37-39 in)34FF-34G, 36E-36F, 38C-38DD
XL99-104 cm (39-41 in)36FF-36H, 38E-38H, 40C-40DD
2XL104-112 cm (41-44 in)38HH-38J, 40E-40H, 42D-42G
3XL112-119 cm (44-47 in)44D-44H, 46C-46G
4XL119-124 cm (47-49 in)48D-48F
5XL124+ cm (49+ in)–

Between two sizes? Choose the larger one for the most comfortable fit. Still unsure? Email contact@poiseandform.com with your measurements and we will help.