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Sizing & Fit

Find your perfect fit

Find all of our detailed guides below. Still have questions about the fit, fabric or another question? You can contact us here with your questions.

Bras

Our bras are sized using a numbered system (1–9) that spans multiple traditional band and cup combinations. Find your usual UK/US, AUS, EU, or FR size in the table below to identify your Studio Pia size number.

Size 1 2 3 4 5 6 7 8 9
UK / US 30C
32B
34A
30D
32C
34B
30DD
32CD
34C
32DD
34D
36C
32E
34DD
36D
32F
34E
36DD
34F
36E
38DD
34FF
36F
38E
34G
36FF
38F
AUS 8C
10B
12A
8D
10C
12B
8DD
10D
12C
10DD
12D
14C
10E
12DD
14D
10F
12E
14DD
12F
14E
16DD
12FF
14F
16E
12G
14FF
16F
EU 65C
70B
75A
65D
70C
75B
65DD
70D
75C
70DD
75D
80C
70E
75DD
80D
70F
75E
80DD
75F
80E
85DD
75FF
80F
85E
75G
80FF
85F
FR 80C
85B
90A
80D
85C
90B
80E
85D
90C
85E
90D
95C
85F
90E
95D
85G
90F
95E
90G
95F
100E
90H
95G
100F
90J
95H
100G

Bralettes

Our bralettes run in standard XS–L sizing with cup size guidance included. The stretch of our peace silk means they comfortably accommodate a cup size either side of the range shown.

Size XS S M L
UK 4–6 8–10 12–14 16–18
US 0–2 4–6 8–10 12–14
EU 32–34 36–38 40–42 44–46
Cup size A–B B–C C–D D–DD

Bodies & Basques

Bodies and basques combine a bra cup fit with a bottom waist and hip measurement. Find your bra size number from the Bras chart above, then check the corresponding bottom size, waist, and hip measurements align with yours.

Size 1 2 3 4 5 6 7 8 9
UK / US 30C
32B
34A
30D
32C
34B
30DD
32CD
34C
32DD
34D
36C
32E
34DD
36D
32F
34E
36DD
34F
36E
38DD
34FF
36F
38E
34G
36FF
38F
AUS 8C
10B
12A
8D
10C
12B
8DD
10D
12C
10DD
12D
14C
10E
12DD
14D
10F
12E
14DD
12F
14E
16DD
12FF
14F
16E
12G
14FF
16F
EU 65C
70B
75A
65D
70C
75B
65DD
70D
75C
70DD
75D
80C
70E
75DD
80D
70F
75E
80DD
75F
80E
85DD
75FF
80F
85E
75G
80FF
85F
Bottom size XS–S XS–S XS–S S–M S–M S–M M–L M–L M–L
Waist 50–70 cm 61–80 cm 71–92 cm
Hip 80–95 cm 90–109 cm 101–118 cm

Bottoms

Knickers, thongs, and briefs use standard XS–L sizing. Measure your natural waist and fullest hip for the most accurate fit.

Size XS S M L
UK 4–6 8–10 12–14 16–18
US 0–2 4–6 8–10 12–14
EU 32–34 36–38 40–42 44–46
Waist 50–60 cm 61–70 cm 71–80 cm 81–92 cm
Hip 80–89 cm 90–100 cm 101–109 cm 110–118 cm