Size Guide

Sereia swimwear follows international sizing. Measurements below are body measurements, not garment measurements — measure yourself snugly over bare skin, keeping the tape level.

Size	US	UK	EU	Bust (cm)	Waist (cm)	Hip (cm)
XS	0–2	4–6	32–34	78–82	60–64	84–88
S	4–6	8–10	36–38	82–86	64–68	88–92
M	8–10	12–14	40–42	86–90	68–72	92–96
L	12–14	16–18	44–46	90–96	72–78	96–102
XL	16–18	20–22	48–50	96–102	78–84	102–108
2XL	20–22	24–26	52–54	102–108	84–90	108–114
3XL	24–26	28–30	56–58	108–114	90–96	114–120

Between sizes?

Size up. Swimwear should sit close but never dig in, and most of our pieces have a little give in the fabric rather than a lot in the cut.

Kids sizing

Children's pieces are labelled by height in centimetres — 90 fits roughly 2–3 years, 110 fits 4–5 years, 130 fits 7–8 years. Go by height rather than age where you can.

Still unsure?

Email us your measurements and the piece you're considering, and we'll tell you which size we'd send. Get in touch.