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UNDERWIRE BRALETTE
Size & fit guide
The Underwire Bralette is a classic cut. Our Underwire Bralette is unique due to its refined and stripped-back shape and fit. We have constructed our seams to be concealed, to ensure that there is no stitching rubbing against your skin. This gives a delicate and unrestrictive feel especially around your ribcage. We use a flexible underwire that doesn’t dig into you, making you forget you are wearing an underwire. This top gives you all-day comfort unlike any other underwire bralette on the market. Our fabrics are treated with colour fastness, anti-yellowing and UV protection to prolong and enhance their lifecycle. Our extremely soft fabric will mould to your body for a second-skin look and feel.
We do premium, timeless swimwear.If you want to see our Underwire Bralette bikini on your body type to see how it fits, please select one of the models below.
WHAT MAKES IT ARK
"Our Underwire Bralette is unique due to its refined and
stripped-back shape and fit. We use a flexible underwire that doesn’t dig into you,
making you forget you are wearing an underwire. This top gives you all-day comfort
unlike any other underwire bralette on the market."
CHOOSE YOUR MODEL
Select a model below to see how fits from the front, back and side
HEIGHT: 167cm
HEIGHT: 167cm
WAIST: 66cm
HIPS (widest): 81cm
HIP BONE: 79cm
BUST: 77cm
UNDER BUST: 64cm
TORSO: 135cm
MODEL A: XS/S
HEIGHT: 174cm
HEIGHT: 174cm
WAIST: 62cm
HIPS (widest): 88cm
HIP BONE: 76cm
BUST: 81cm
UNDER BUST: 73cm
TORSO: 157cm
MODEL B: S
HEIGHT: 182cm
HEIGHT: 182cm
WAIST: 69cm
HIPS (widest): 101cm
HIP BONE: 83cm
BUST: 94cm
UNDER BUST: 75cm
TORSO: 160cm
MODEL C: M/L/XL
HEIGHT: 173cm
HEIGHT: 173cm
WAIST: 66cm
HIPS (widest): 94cm
HIP BONE: 75cm
BUST: 84cm
UNDER BUST: 70cm
TORSO: 148cm
MODEL D: M
HEIGHT: 178cm
HEIGHT: 178cm
WAIST: 77cm
HIPS (widest): 100cm
HIP BONE: 95cm
BUST: 93cm
UNDER BUST: 80cm
TORSO: 160cm
MODEL E: L
YOU'VE CHOSEN MODEL A
Underwire Bralette (Small) and Banded (X-Small)
WHO IT SUITS:
Those looking for a subtle lift and more support will love this bikini top, making it ideal for cup sizes A-D.
We choose not to use padding as it becomes sodden and slow to dry, making it uncomfortable for all day wear. Our swimwear is fully lined and isn't see-through, but if you prefer the padded look this style may not be for you.
TRYING IT ON:
The coverage you get on the first wear will be its coverage for life. Designed to just skim your nipple, as reflected in our campaign imagery.
Ensure you try your Underwire Bralette on the right way – it looks reversible, but one side has lining.
The fabric is made to feel tight around your bust on the first wear. There are 3 adjustment options around the back. Try the first or second hook on your first wear as the band may loosen once worn wet a few times. The hook may slide to the side when you wear the top because of the adjustable clasps and hidden seams, which are there for your comfort.
After you've worn it wet for the first few times, tighten the shoulder straps as they will loosen and stretch up to an inch.
If you have existing tan lines, picture yourself evenly tanned when trying the bikini on. This will help you feel less exposed and have a more accurate fitting experience.
If you're unsure about the fit and style, try it on a second time the next day.
YOU'VE CHOSEN MODEL B
Underwire Bralette (Small) and Banded (Small)
WHO IT SUITS:
Those looking for a subtle lift and more support will love this bikini top, making it ideal for cup sizes A-D.
We choose not to use padding as it becomes sodden and slow to dry, making it uncomfortable for all day wear. Our swimwear is fully lined and isn't see-through, but if you prefer the padded look this style may not be for you.
TRYING IT ON:
The coverage you get on the first wear will be its coverage for life. Designed to just skim your nipple, as reflected in our campaign imagery.
Ensure you try your Underwire Bralette on the right way – it looks reversible, but one side has lining.
The fabric is made to feel tight around your bust on the first wear. There are 3 adjustment options around the back. Try the first or second hook on your first wear as the band may loosen once worn wet a few times. The hook may slide to the side when you wear the top because of the adjustable clasps and hidden seams, which are there for your comfort.
After you've worn it wet for the first few times, tighten the shoulder straps as they will loosen and stretch up to an inch.
If you have existing tan lines, picture yourself evenly tanned when trying the bikini on. This will help you feel less exposed and have a more accurate fitting experience.
If you're unsure about the fit and style, try it on a second time the next day.
YOU'VE CHOSEN MODEL D
Underwire Bralette (Medium) and Banded (Medium)
WHO IT SUITS:
Those looking for a subtle lift and more support will love this bikini top, making it ideal for cup sizes A-D.
We choose not to use padding as it becomes sodden and slow to dry, making it uncomfortable for all day wear. Our swimwear is fully lined and isn't see-through, but if you prefer the padded look this style may not be for you.
TRYING IT ON:
The coverage you get on the first wear will be its coverage for life. Designed to just skim your nipple, as reflected in our campaign imagery.
Ensure you try your Underwire Bralette on the right way – it looks reversible, but one side has lining.
The fabric is made to feel tight around your bust on the first wear. There are 3 adjustment options around the back. Try the first or second hook on your first wear as the band may loosen once worn wet a few times. The hook may slide to the side when you wear the top because of the adjustable clasps and hidden seams, which are there for your comfort.
After you've worn it wet for the first few times, tighten the shoulder straps as they will loosen and stretch up to an inch.
If you have existing tan lines, picture yourself evenly tanned when trying the bikini on. This will help you feel less exposed and have a more accurate fitting experience.
If you're unsure about the fit and style, try it on a second time the next day.
YOU'VE CHOSEN MODEL E
Underwire Bralette (Large) and Banded (Large)
WHO IT SUITS:
Those looking for a subtle lift and more support will love this bikini top, making it ideal for cup sizes A-D.
We choose not to use padding as it becomes sodden and slow to dry, making it uncomfortable for all day wear. Our swimwear is fully lined and isn't see-through, but if you prefer the padded look this style may not be for you.
TRYING IT ON:
The coverage you get on the first wear will be its coverage for life. Designed to just skim your nipple, as reflected in our campaign imagery.
Ensure you try your Underwire Bralette on the right way – it looks reversible, but one side has lining.
The fabric is made to feel tight around your bust on the first wear. There are 3 adjustment options around the back. Try the first or second hook on your first wear as the band may loosen once worn wet a few times. The hook may slide to the side when you wear the top because of the adjustable clasps and hidden seams, which are there for your comfort.
After you've worn it wet for the first few times, tighten the shoulder straps as they will loosen and stretch up to an inch.
If you have existing tan lines, picture yourself evenly tanned when trying the bikini on. This will help you feel less exposed and have a more accurate fitting experience.
If you're unsure about the fit and style, try it on a second time the next day.
YOU'VE CHOSEN MODEL C
Underwire Bralette (Large) and Banded (Medium)
WHO IT SUITS:
Those looking for a subtle lift and more support will love this bikini top, making it ideal for cup sizes A-D.
We choose not to use padding as it becomes sodden and slow to dry, making it uncomfortable for all day wear. Our swimwear is fully lined and isn't see-through, but if you prefer the padded look this style may not be for you.
TRYING IT ON:
The coverage you get on the first wear will be its coverage for life. Designed to just skim your nipple, as reflected in our campaign imagery.
Ensure you try your Underwire Bralette on the right way – it looks reversible, but one side has lining.
The fabric is made to feel tight around your bust on the first wear. There are 3 adjustment options around the back. Try the first or second hook on your first wear as the band may loosen once worn wet a few times. The hook may slide to the side when you wear the top because of the adjustable clasps and hidden seams, which are there for your comfort.
After you've worn it wet for the first few times, tighten the shoulder straps as they will loosen and stretch up to an inch.
If you have existing tan lines, picture yourself evenly tanned when trying the bikini on. This will help you feel less exposed and have a more accurate fitting experience.
If you're unsure about the fit and style, try it on a second time the next day.
IF YOU LIKE OUR UNDERWIRE BRALETTE, YOU MAY LIKE OUR...
if you like our Underwire Bralette Bikini Top but are looking for other options you may like one of these styles.
Please refer to our Support Guide for more product recommendations based on your support needs.
BALCONETTE
Structured design with more cup coverage and thicker over-the-shoulder straps
BRALETTE
Underwire-free with slightly thicker over-the-shoulder straps
STRING BRALETTE
Thin, flat and adjustable over-the-shoulder and band straps
SUPPORT GUIDE
LEASTMOST
WANT THE LOOK
Click here to learn more about our Banded Bottom size and fit
CHOOSE ANOTHER STYLE
Click here to pick another style to learn all things size and fit
CHOOSE ANOTHER MODEL
Click here to see the Underwire Bralette on a different Ark model
UNDERWIRE BRALETTE SIZE CHART
| Country | Extra Small | Small | Medium | Large | Extra Large |
|---|---|---|---|---|---|
| AU/UK | 4B/6A/8AA | 6C/8B/10A | 8D/10B/10C | 10D/12B/12C | 12DD/14C/14D |
| US/CAN | 26B/28A/30AA | 28C/30B/32A | 30D/32B/32C | 32D/34B/34C | 34DD/36C/36D |
| EU | 55B/60A/65AA | 60C/65B/70A | 65D/70B/70C | 70D/75B/75C | 75E/80C/80D |
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