📏 fit note: not sure what size you should get? if you are in-between sizes, we recommend sizing down.
For more info, check out our size chart here.
The Roxbury Plunge Neck Bikini Top is a totally timeless and flattering banded plunge v-neck bikini top that is supportive, made with removable cups, raw-cut/bonded edges, and a soft inner grip.
Roxbury goes beyond seamless swimwear and ups the ante, pairing this classic look with unprecedented comfort and functionality. Rock the Roxbury on your beach day for a style that is completely onewith you.
📏 fit note: not sure what size you should get? if you are in-between sizes, we recommend sizing down.
For more info, check out our size chart here.
Ready to find your perfect onewith fit? Just click the 'Take the 'find my size quiz' here' button on any product page, answer a few simple questions. Once completed, your best size will populate, tailored to each and every style on our site for all our products as you continue to shop. 🎉
Now, remember—everyone's unique, and preferences, along with the human body, are more dynamic than any size chart or quiz could ever capture. That being said, our sizing quiz is the next best thing to actually trying on our suits in person 😉🔍
Disclaimer: While we strive to provide the most accurate sizing guidance possible, please note that individual fit preferences and proportions may (read: WILL) vary. Buying the size that the size quiz suggests does not guarantee your fit.
If you have any further questions or concerns, our dedicated customer support team is always here to assist you (chat us, DM us, email us, etc!) and, we offer 1 free courtesy exchange on eligible orders 🩵 read our full return/exchange policy here.
SIZE | BUST | WAIST | HIPS | |
XXS | 00 | 30 -31 | 22-23 | 33-34 |
XS | 0 | 32 - 33 | 24 - 25 | 35 - 36 |
S | 2-4 | 34 - 35 | 26 - 27 | 37 - 38 |
M | 6-8 | 36 - 37 | 28 - 29 | 39 - 40 |
L | 10-12 | 38 - 39 | 30 - 31 | 41 - 42 |
XL | 14-16 | 39 - 41 | 32 - 34 | 43 - 45 |
2X | 18-20 | 42 - 44 | 35 - 37 | 46 - 49 |
3X | 22-24 | 45 - 48 | 38 - 41 | 50 - 52 |
4X | 26-28 | 49 - 52 | 42 - 45 | 53 - 55 |
SIZE | INCHES - shoulder to crotch, relaxed | |
XS | 24.25 | |
S | 25 | |
M | 26.75 | |
L | 27.25 | |
XL | 28 | |
2X | 28.75 | |
3X | 30.75 | |
4X | 31.25 |
When sized and stretched properly, onewith will NOT dig in. Remember: you're a human being, and bodies are so much more dynamic than just numbers on a size chart. DM us if you want further guidance on best size!
NOTE: Do NOT expect our suits to be IDENTICAL to no-show underwear in fit. Do note that our suits do not have the same amount of stretchiness of standard no-show panty due to the inner grip strip & bonding.
Looking for cup sizes? We don't size by cup! Go with the measurement of the fullest part of your bust, and reference the Bust section of the chart. Or, shortcut alert 📣 order the same size you would for a camisole/tight tank!
please don't 🫠🫠🫠🫠 read about high volume returns here. (hint: we charge additional return fees for this! it's not great for our small business, the environment, and other customers ☹️)
Some IRL size reference pics for you:
🤨 need more guidance on what size to choose? chat us! our team of fit experts will help you! 💬
🎉 enter code SURPRISE at checkout for a secret discount 👀
see our size guide/take our sizing quiz for sizing tips!
80% nylon, 20% elastane
have questions? email or DM us!
FREE shipping on all US orders over $85
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Adding product to your cart
The Roxbury Plunge Neck Bikini Top is a totally timeless and flattering banded plunge v-neck bikini top that is supportive, made with removable cups, raw-cut/bonded edges, and a soft inner grip.
Roxbury goes beyond seamless swimwear and ups the ante, pairing this classic look with unprecedented comfort and functionality. Rock the Roxbury on your beach day for a style that is completely onewith you.
📏 fit note: not sure what size you should get? if you are in-between sizes, we recommend sizing down.
For more info, check out our size chart here.
Ready to find your perfect onewith fit? Just click the 'Take the 'find my size quiz' here' button on any product page, answer a few simple questions. Once completed, your best size will populate, tailored to each and every style on our site for all our products as you continue to shop. 🎉
Now, remember—everyone's unique, and preferences, along with the human body, are more dynamic than any size chart or quiz could ever capture. That being said, our sizing quiz is the next best thing to actually trying on our suits in person 😉🔍
Disclaimer: While we strive to provide the most accurate sizing guidance possible, please note that individual fit preferences and proportions may (read: WILL) vary. Buying the size that the size quiz suggests does not guarantee your fit.
If you have any further questions or concerns, our dedicated customer support team is always here to assist you (chat us, DM us, email us, etc!) and, we offer 1 free courtesy exchange on eligible orders 🩵 read our full return/exchange policy here.
SIZE | BUST | WAIST | HIPS | |
XXS | 00 | 30 -31 | 22-23 | 33-34 |
XS | 0 | 32 - 33 | 24 - 25 | 35 - 36 |
S | 2-4 | 34 - 35 | 26 - 27 | 37 - 38 |
M | 6-8 | 36 - 37 | 28 - 29 | 39 - 40 |
L | 10-12 | 38 - 39 | 30 - 31 | 41 - 42 |
XL | 14-16 | 39 - 41 | 32 - 34 | 43 - 45 |
2X | 18-20 | 42 - 44 | 35 - 37 | 46 - 49 |
3X | 22-24 | 45 - 48 | 38 - 41 | 50 - 52 |
4X | 26-28 | 49 - 52 | 42 - 45 | 53 - 55 |
SIZE | INCHES - shoulder to crotch, relaxed | |
XS | 24.25 | |
S | 25 | |
M | 26.75 | |
L | 27.25 | |
XL | 28 | |
2X | 28.75 | |
3X | 30.75 | |
4X | 31.25 |
When sized and stretched properly, onewith will NOT dig in. Remember: you're a human being, and bodies are so much more dynamic than just numbers on a size chart. DM us if you want further guidance on best size!
NOTE: Do NOT expect our suits to be IDENTICAL to no-show underwear in fit. Do note that our suits do not have the same amount of stretchiness of standard no-show panty due to the inner grip strip & bonding.
Looking for cup sizes? We don't size by cup! Go with the measurement of the fullest part of your bust, and reference the Bust section of the chart. Or, shortcut alert 📣 order the same size you would for a camisole/tight tank!
please don't 🫠🫠🫠🫠 read about high volume returns here. (hint: we charge additional return fees for this! it's not great for our small business, the environment, and other customers ☹️)
Some IRL size reference pics for you:
i always struggle to find good bikini tops bc i’m small chested but this one is perfect
Thank you so much for this review, Rachel We're so glad you found us! The Roxbury is a universally flattering bikini top, and we're thrilled to hear how much you enjoy it :)
Good coverage. Shows enough to be sexy but not too much . I move got a small frame and large chest. Size small fit great
Hi Caroline, thank you so much for this review! So happy to hear you love your Roxbury. It's one of our favorite tops, and it's super supportive for those who have smaller band + larger cup sizes. Enjoy your onewith 🧡
I wore this top during spring break and I absolutely loved the look of it! It didn’t fit me exactly right but I think it’s just because I’m short and so the straps were a little too long for me but every other part fit really well! I swam in it and everything and it still fit really well afterwards! I want to try some other styles to see if they fit me better but overall this is a GREAT top!
Hi AnnaLee, thank you so much for this review! You're truly glowing in your Roxbury 🤩 We're so glad to hear you found this to stay put while you were swimming, and that you think it's a great top! Enjoy your swim!
Nice, flattering top that keeps the girls in securely.
Hi Nikki, thank you so much for this review! We're so glad to hear the Roxbury does its job, providing a flattering, secure fit. Enjoy your onewith!