Sizing & Fit

Find your nani fit.

One quick measure, one honest recommendation. Our suits are built with 4-way stretch and designed on real Nani customers — so the size you land on actually fits the body you have today.

The size finder

Two numbers. One size. Zero guesswork.

Type your measurements, get a Nani size you can actually buy. We always round up — every fabric we use has give.

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Your Nani size
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Your size will land here.

Enter at least one measurement to see your recommendation. Two measurements gives the sharpest answer.

The size charts

Every body, every category.

All measurements in inches. Need centimeters? Use the toggle in the size finder above.

Women's Swim

Bikini tops, bottoms, one-pieces, rashguards.

Size Dressin Underbustin Waistin
XXS 0022 – 2422 – 23
XS 0–225 – 2724 – 25
S 4–628 – 3026 – 27
M 6–831 – 3328 – 31
L 10–1234 – 3632 – 34
XL 14–1637 – 3935 – 38
XXL 18–2040 – 4239 – 41
2X 22W42 – 4442 – 44
3X 24W46 – 4846 – 48

Women's Apparel Bottoms

Hybrid shorts, lake shorts, leggings, base layer.

Size Numericalin Waistin Hipin
XS 0–225 – 2736 – 38
S 4–628 – 3038 – 40
M 8–1031 – 3240 – 42
L 12–1432 – 3342 – 43
XL 1634 – 3644 – 45
XXL 1837 – 4046 – 47

Kids

Match Your Mini, Girls, and Boys.

Age Hipin Chestin
2T 1818.5
3T 1919
4T 2019.5
5T 2120
6 22 – 2321 – 22
8 23 – 2422 – 23
10 24 – 2523 – 24
12 25 – 2624 – 25
14 26 – 2725 – 26

Men's

Board shorts and unisex sun hoodies.

Size Waistin Chestin
S 26 – 2834 – 36
M 30 – 3238 – 40
L 34 – 3642 – 44
XL 38 – 4046 – 48
XXL 42 – 4450 – 52
Stretches up to one full size in each direction 2X & 3X cuts are pattern-graded — not just enlarged