🚨 30% OFF ABSOLUTELY EVERYTHING! DISCOUNT AUTOMATICALLY APPLIED!🚨
Our founder’s fave! The Roxbury is a totally timeless and flattering banded plunge v-neck bikini top that is supportive. onewith makes all of its bikini tops (and one pieces!) with removable cups, raw-cut/bonded edges, and a soft inner grip. Zero elastics or bulky seams, because we want our swimwear to look and feel like underwear (dig-free and flattering, pleaseandthankyou!). 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: Unsure about what size you need? If you’re between sizes, we recommend you size down. Grab a measuring tape and head over to our size chart - we’ll meet you there!
- Garment imported from China
- Designed in USA, patent-pending
- Soft, flexible inner grip strip to keep the suit secure
- LATEX INFORMATION: we can not guarantee that the inner grip strip inside of our suits does not contain trace amounts of latex. Therefore, if you have a latex sensitivity or allergy, we recommend you exercising the same caution and sensibilities you would take in general when determining whether or not to use or wear a product that may contain latex.
- Dig-free, elastic-free, edgeless smoothing laser-cut construction, just like your fave undies
- 80% recycled nylon 20% elastane
- Hand wash only (rinsing in the shower is just fine), lay flat to dry
🌟 Discover Your Perfect Fit with WAIR 🌟
👋 We understand that finding the right size can be tricky, we've partnered with WAIR to make it easier than ever. 🙌
While we don't size by cup, including your bra size as supplemental information allows WAIR's AI to assess fit based on data and provide you with the best recommendations. 📊✨ And here's the important part: your privacy is our priority, so rest assured that all answers remain anonymous. 😊
Now, we get it—everyone's unique, and the human body is more dynamic than any size chart could ever capture. That being said, our sizing quiz is the next best thing to actually trying on our suits in person 😉🔍
So, are you ready to find your perfect fit? Simply click the button below and answer a few simple questions. Once completed, your best-fit size will be pre-selected for all our products as you continue to shop. 🎉
Every product may fit differently, so keep an eye out for any specific recommendations tailored to certain styles. We want you to feel confident and comfortable in your swimwear! 💃💦
Let's make sizing a breeze together. Click below and let WAIR work its magic! ✨👙
Disclaimer: While we strive to provide the most accurate sizing guidance possible, please note that individual fit preferences and proportions may (read: WILL) vary. If you have any further questions or concerns, our dedicated customer support team is always here to assist you...and, we offer 1 free courtesy exchange for domestic customers! Happy shopping! 🛍️💕
Size XXS is now available in select styles!
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 |
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.
Each product page features a fit note to help you choose your best size for that particular style if you find yourself in-between sizes 😊
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!
Some IRL size reference pics for you:
"can I just order a few sizes and styles and return what doesn't fit???"
please don't 🫠🫠🫠🫠 here's why.
⛔ Bracketing + high-quantity first orders are STRONGLY discouraged: while we understand the desire to find your best size(s) and styles, ordering multiple variants of a piece with the intention of returning those that do not fit/suit you creates inventory issues for us as a small business, and also compromises hygiene best practices. We encourage conscious consumerism by way of small, mindful first orders of 1-2 units. While we naturally love when you stock up on your fave swim once you know your best onewith size, please do so mindfully for our other customers' sake (that is, without the intention of returning extra sizes/styles). While this may be more permissible for an enterprise-level company, we ask that you consider how bracketing + large returns affect a small business, its customers, and the environment. Returns of 3 or more pieces/customer will be subject to a processing fee of $15.95 in addition to the return fee.
Bellows One Piece Torso Measurements
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 |
Roxbury Plunge Neck Bikini Top
- Unit price
- /per
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 $65
secure payment
To protect your onewith package from damage, loss, or theft, add Order Protection at checkout. We do not make money on this; it is PURELY for your benefit! 📦 Order Protection orders ship carbon neutral 🌎
Adding product to your cart
🚨 30% OFF ABSOLUTELY EVERYTHING! DISCOUNT AUTOMATICALLY APPLIED!🚨
Our founder’s fave! The Roxbury is a totally timeless and flattering banded plunge v-neck bikini top that is supportive. onewith makes all of its bikini tops (and one pieces!) with removable cups, raw-cut/bonded edges, and a soft inner grip. Zero elastics or bulky seams, because we want our swimwear to look and feel like underwear (dig-free and flattering, pleaseandthankyou!). 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: Unsure about what size you need? If you’re between sizes, we recommend you size down. Grab a measuring tape and head over to our size chart - we’ll meet you there!
- Garment imported from China
- Designed in USA, patent-pending
- Soft, flexible inner grip strip to keep the suit secure
- LATEX INFORMATION: we can not guarantee that the inner grip strip inside of our suits does not contain trace amounts of latex. Therefore, if you have a latex sensitivity or allergy, we recommend you exercising the same caution and sensibilities you would take in general when determining whether or not to use or wear a product that may contain latex.
- Dig-free, elastic-free, edgeless smoothing laser-cut construction, just like your fave undies
- 80% recycled nylon 20% elastane
- Hand wash only (rinsing in the shower is just fine), lay flat to dry
🌟 Discover Your Perfect Fit with WAIR 🌟
👋 We understand that finding the right size can be tricky, we've partnered with WAIR to make it easier than ever. 🙌
While we don't size by cup, including your bra size as supplemental information allows WAIR's AI to assess fit based on data and provide you with the best recommendations. 📊✨ And here's the important part: your privacy is our priority, so rest assured that all answers remain anonymous. 😊
Now, we get it—everyone's unique, and the human body is more dynamic than any size chart could ever capture. That being said, our sizing quiz is the next best thing to actually trying on our suits in person 😉🔍
So, are you ready to find your perfect fit? Simply click the button below and answer a few simple questions. Once completed, your best-fit size will be pre-selected for all our products as you continue to shop. 🎉
Every product may fit differently, so keep an eye out for any specific recommendations tailored to certain styles. We want you to feel confident and comfortable in your swimwear! 💃💦
Let's make sizing a breeze together. Click below and let WAIR work its magic! ✨👙
Disclaimer: While we strive to provide the most accurate sizing guidance possible, please note that individual fit preferences and proportions may (read: WILL) vary. If you have any further questions or concerns, our dedicated customer support team is always here to assist you...and, we offer 1 free courtesy exchange for domestic customers! Happy shopping! 🛍️💕
Size XXS is now available in select styles!
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 |
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.
Each product page features a fit note to help you choose your best size for that particular style if you find yourself in-between sizes 😊
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!
Some IRL size reference pics for you:
"can I just order a few sizes and styles and return what doesn't fit???"
please don't 🫠🫠🫠🫠 here's why.
⛔ Bracketing + high-quantity first orders are STRONGLY discouraged: while we understand the desire to find your best size(s) and styles, ordering multiple variants of a piece with the intention of returning those that do not fit/suit you creates inventory issues for us as a small business, and also compromises hygiene best practices. We encourage conscious consumerism by way of small, mindful first orders of 1-2 units. While we naturally love when you stock up on your fave swim once you know your best onewith size, please do so mindfully for our other customers' sake (that is, without the intention of returning extra sizes/styles). While this may be more permissible for an enterprise-level company, we ask that you consider how bracketing + large returns affect a small business, its customers, and the environment. Returns of 3 or more pieces/customer will be subject to a processing fee of $15.95 in addition to the return fee.
Bellows One Piece Torso Measurements
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 |
- DLDiamond L.Verified Buyer2 days agoReviewingRoxbury Plunge Neck Bikini Top - Buzzin | FINAL SALERated 5 out of 5 starsI LOVE IT
These swimsuits are a dream! Fit and feel just like seamless undies. If you’re on the fence about getting one, hop off and do it.
For reference I’m a size 16 curvy in jeans, very busty and u got a 3xl in top and bottom!
Was this helpful? - VCvalerie c.Verified Buyer6 days agoReviewingRoxbury Plunge Neck Bikini TopRated 5 out of 5 starsBUY IT
I am obsessed with this top!If you are thinking about it- buy it because you will not be disappointed. Please make red!!!
Was this helpful? - NPNadia P.Verified Buyer1 month agoReviewingRoxbury Plunge Neck Bikini TopRated 5 out of 5 starsgood fit!
very flattering. i wear a 34B and ordered a small. it’s a little bit tight to get on with the internal lining but sits comfortably once it’s on. probably just need to stretch it a little bit more but i love it!
one thing to note - if you’re outside of the US you’ll need to pay taxes and duties on your shipment once it arrives!
Was this helpful?Oonewith2 weeks agoHi Nadia, thank you so much for this review! Stretching is essential to the fit of our swim, so you're spot on with this! We do recommend that the suits are still snug to the skin (without digging in) after giving it a stretch; the combo of smoothness + snugness is key for security, function, and second-skin feel 😊
- SSamantha3 months agoReviewingRoxbury Plunge Neck Bikini TopRated 5 out of 5 starsWhat a sweet surprise!
After having a baby swimsuits fit me a lot differently then they used to- especially in the chest. This swimsuit top has been the only one I have tried on since becoming a mom that is actually flattering and super comfy, & I don’t feel like I will fall out of it all over the place. The best part is that it’s nursing friendly while being super sexy at the same time. Totally shocked at how confident it has made me feel and how much I love it. If you struggle with finding swimsuits that make you feel good definitely give onewith a try!
Was this helpful?Oonewith3 months agoHi Samantha, thank you so much for your review + kind words! Finding a flattering swimsuit is a universal struggle amongst women, so we changed the swimwear game by creating dig-free, edgeless swimsuits that fit like no-show underwear. Offering a super supportive fit, Roxbury is one of our fave styles, and it means SO much to us that it exceeded your expectations and makes you feel confident, sexy, and comfortable!