Lodge a return in our portal and get your items back to us within 14 days of receiving your order for an exchange, online store credit or refund. Items that are returned outside of the 14 day window will only be eligible for a store credit.
Items must be returned in their original condition — unworn, unwashed, unaltered and with any labels, tags and hygiene stickers intact.
Please note that original and return shipping costs, duties and taxes are not refundable. Learn more at us.unepiece.com/returns.
Our model wears size AU 8 (US 4) and is 173 cm (5'8") tall.
UNE PIECE is available in womens sizes US 2 to 20 (AU 6 to 24). We follow standard sizing guidelines and make our products true to size.
Our swimsuits are constructed with a firm fit to flatter your shape. If you are between sizes, we recommend choosing the larger of the two sizes. For example, if you wear a size 10 in the top but a size 12 on the bottom (or vice versa) we recommend you purchase a size 12.
To keep your UNE PIECE looking beautiful, please carefully follow our care instructions:
- Cold hand wash.
- Do not soak, bleach or dry clean.
- Do not spin or tumble dry.
- Do not iron.
- Line dry out of direct sunlight.
- Do not pack or store when wet.
- Remove any excess water and dry without delay.
- Separate light colours from dark before washing.
Size Guide
CMIN
AU/UK
Bust
Underbust
Waist
Hips
US
Bust
Underbust
Waist
Hips
6 (XS)
76 - 80
64 - 68
59 - 63
86 - 90
8 (S)
81 - 85
69 - 73
64 - 68
91 - 95
10 (S)
86 - 90
74 - 78
69 - 73
96 - 100
12 (M)
91 - 95
79 - 83
74 - 78
101 - 105
14 (M)
96 - 100
84 - 88
79 - 83
106 - 110
16 (L)
101 - 105
89 - 93
84 - 88
111 - 115
18 (L)
106 - 110
94 - 98
89 - 93
116 - 120
20 (XL)
111 - 115
99 - 103
94 - 98
121 - 125
22 (XL)
116 - 120
104 - 108
99 - 103
126 - 130
24 (XXL)
121 - 125
109 - 113
104 - 108
131 - 135
2 (XS)
29.9 - 31.5
25.2 - 26.8
23.2 - 24.8
33.9 - 35.4
4 (S)
31.9 - 33.5
27.2 - 28.7
25.2 - 26.8
35.8 - 37.4
6 (S)
33.9 - 35.4
29.1 - 30.7
27.2 - 28.7
37.8 - 39.4
8 (M)
35.8 - 37.4
31.1 - 32.7
29.1 - 30.7
39.8 - 41.3
10 (M)
37.8 - 39.4
33.1 - 34.6
31.1 - 32.7
41.7 - 43.3
12 (L)
39.8 - 41.3
35 - 36.6
33.1 - 34.6
43.7 - 45.3
14 (L)
41.7 - 43.3
37 - 38.6
35 - 36.6
45.7 - 47.2
16 (XL)
43.7 - 45.3
39 - 40.6
37 - 38.6
47.6 - 49.2
18 (XL)
45.7 - 47.2
40.9 - 42.5
39 - 40.6
49.6 - 51.2
20 (XXL)
47.6 - 49.2
42.9 - 44.5
40.9 - 42.5
51.6 - 53.1
Size
AU/UK
US
EU/FR ES/PT
DE
IT
JP
XS
6
2
34
36
38
5
S
8
4
36
38
40
7
S
10
6
38
40
42
9
M
12
8
40
42
44
11
M
14
10
42
44
46
13
L
16
12
44
46
48
15
L
18
14
46
48
50
17
XL
20
16
48
50
52
19
XL
22
18
50
52
54
21
XXL
24
20
52
54
56
23
Our swimwear is designed for a firm, flattering fit. If you find yourself between sizes, we recommend selecting the larger size for optimal comfort.
How to measure
Bust: Using a flexible tape measure, measure across the fullest part of your chest, ensuring the tape measure is straight across your back.
Underbust: Measure directly under your bust, where the band of a bra would sit.
Waist: Measure around your natural waistline — this is the narrowest part of your torso, usually right above your belly button.
Hips: Stand with your heels together and measure around the fullest part of your hips and bottom.
Beautifully crafted and fully lined, luxury rash vest top.
This must-have piece has a tailored fit and will make any swimsuit both sun-smart and super sexy. Features full-length sleeves that create long, elegant lines.
Sustainable UPF50+ fabric blocks 98% of UV rays.
Features a signature 'U' shaped zipper puller.
Ultra chlorine resistant. Pilling and sun cream resistant.
UNE PIECE swimwear is made from recycled and sustainable fabrics and linings.