🛒 1 FREE Exchange on Eligible US Orders 📦 FREE Shipping on US Orders Over $85

  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top
  • Westerly Tie-Front Bikini Top

Westerly Tie-Front Bikini Top

4.7
Rated 4.7 out of 5 stars
92 Reviews
Regular price $49.00
Unit price per
hi 👋 we're onewith - the most flattering swimwear! our swimwear is patent-pending, dig-free, elastic-free, and edgeless, just like your favorite no-show seamless undies.
Size
Color:
  SCAVENGER HUNT: 🎅you’ve found the 🎅emoji! Enter code HOHOHO at checkout for 25% off any full-priced swim. Expires after 10 uses by individual customers,...
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size & fit info

Customers say this style can run a little big, so if you're in-between sizes, we recommend sizing down.

View our size chart here

shipping & returns

RETURNS

  • 1 free exchange for eligible US orders 🫶
  • 14-day returns available for a fee for eligible US orders 📦
  • items purchased at a discount of 30% or more are eligible for store credit only.
  • items marked final sale are always, you guessed it, final sale!
  • international orders are always final sale. see our full returns policy here.

SHIPPING

  • free standard shipping on US orders over $85 😍
  • priority + express shipping also available! 💨
  • international shipping available, rates and duties calculated at checkout ✈️
  • Shipping Protection, offered at checkout, is HIGHLY recommended! It covers lost, damaged, stolen, and stuck-in-transit packages 👍
product details
  • designed in USA, made in China
  • patent-pending
  • LATEX INFO: we cannot guarantee that the inner grip strip of our suits is entirely free of latex. If you have a latex sensitivity or allergy, we recommend exercising the same caution you would typically use when assessing whether to wear a product that may contain latex.
  • 80% nylon, 20% elastane
  • hand wash only, lay flat to dry
swimsuit care
  • Hand wash in cold water as soon as you can after use (rinsing in the shower is fine!)
  • DO NOT machine wash.
  • Lay flat to dry, do not hang.
  • Do not dry clean, iron, or machine dry (even on a delicate cycle...) as this can, and most likely will, damage your onewith.
  • Hot tubs and chlorinated pools with harsh chemicals can impact the quality and longevity of any swimwear, so it’s best to avoid them if you want to keep your swim in tip-top shape.
  • If you wear your onewith under normal clothes, keep in mind that friction can create pilling/snagging. We prefer to wear our onewith under beach cover-ups/sarongs, which are created to be worn with swim.
  • Sunless tanners, suntan lotions, oils, and harsh chemicals can ruin your onewith - ensure to not get these products in contact with any swim/garments!
  • ships from CT, USA
  • free shipping on US orders over $85
  • 14-day returns
  • 1 free exchange
as seen in

onewith you from the inside out ↔️

our swim has a soft inner grip strip to keep your suit secure...without tight seams.

free shipping on US orders over $85
women-owned + WBENC-certified
size-inclusive (XXS - 4XL)
1 free courtesy exchange eligible on US orders

why choose onewith?

✨onewith ✨ vs. other swimwear

other swim brands
edgeless (no digging!)
no squeezing (elastic-free!)
no hidden seams inside
raw-cut (lays-flat on the body!)
inner grip inside to keep secure
made with 2 layers of fabric

☝️ frequently asked questions

the most commonly asked Qs about our swim that fits like undies ⬇️
  • please take our size quiz! it's the pink button that says 'CLICK HERE to find your size.' that is on every single product page on our site.

    you only need to take it once, and your best size will automatically display for each product on our site, depending on how that product runs.

    if you still want help in finding your size, reference our size guide here

    additionally, chat us on-site (quickest!) or DM us on IG and we can help you out.

  • We offer 1 free exchange on eligible US orders so that you can find your best onewith size.

    Returns are available for a $12.50 fee per order (additional fee will apply if you're returning more than 3 items).

    US orders purchased at a discount of 30% or more are eligible for return for store credit ONLY. no refunds or exchanges.

    International orders are ALWAYS final sale.

    You may return/exchange your eligible order within 14 days, the 14-day window begins the day of carrier-confirmed delivery. 

    Read more about the onewith Return Policy here.

    ⚠️ NOTE: ITEMS MARKED FINAL SALE + MYSTERY BUNDLES ARE ABSOLUTELY, POSITIVELY FINAL SALE. No returns, no exchanges, no exceptions. 

  • onewith = 2 layers of normal swimwear fabric, just like any other swimwear. people tend to think our swim is either 1 layer of fabric, and/or super thin, like no-show undies. that is not true! again, our swim has 2 layers of fabric. It's just bonded together, not sewn with tight seams, which gives it a sleeker appearance that people may read as "thin." While we can't guarantee our suits are frontal-wedgie-free, so-to-speak as every person's anatomy is different, we can say that there is no reason why our suits would cause 🐪toe more than any other swimwear.

  • yes, all of our bikini tops + one pieces have removable bust cups that you can leave in, or take out!

  • we get it, the itch to get your swim that doesn't dig in ASAP is real! luckily, we do offer an Express shipping option if you do need it ASAP. otherwise, we offer free standard shipping on US orders over $85. all orders with standard shipping ship from our Connecticut, USA warehouse within 2-5 business days of receiving your order.

  • ALL onewith suits feature our inner grip strip, which keeps the suits secure without the use of tight seams or elastic that digs. the inner grip strip is super soft and flexible.

🥴 traditional swimwear vs. onewith swim✨

4.7
Rated 4.7 out of 5 stars
Based on 92 reviews
Total 5 star reviews: 76 Total 4 star reviews: 10 Total 3 star reviews: 4 Total 2 star reviews: 2 Total 1 star reviews: 0
93%would recommend these products
Overall FitRated 0.0 on a scale of minus 2 to 2
92 reviews
  • KN
    KATHERYN N.
    Verified Buyer
    Westerly Tie-Front Bikini Top
    Reviewing
    Westerly Tie-Front Bikini Top
    I recommend this product
    What is your typical bra size? 34A
    What size did you purchase? XS
    Rated 5 out of 5 stars
    4 weeks ago
    Fits so well!

    This top is great for smaller chested ladies. Size down by one.

    Overall FitRated 0.0 on a scale of minus 2 to 2
    O Profile picture for onewith
    onewith
    2 weeks ago

    Thank you so much for your review, Katheryn! We're so glad you love your Westerly and that it fits just how you want it to :)

  • JH
    Jennifer H.
    Verified Buyer
    Westerly Tie-Front Bikini Top
    Reviewing
    Westerly Tie-Front Bikini Top
    I recommend this product
    What is your typical bra size? 38C
    What size did you purchase? XL
    Rated 5 out of 5 stars
    2 months ago
    So cute and flattering!

    I took a shot in the dark ordering a top with my bottoms since I don’t have one similar to this style and let me tell you it’s is so cute! The only this is that the excess material when tying can awkwardly jut out too much for my preference but double knotting it looks strange but it’s something I can bare with!

    Overall FitRated 0.0 on a scale of minus 2 to 2
    O Profile picture for onewith
    onewith
    1 month ago

    Thank you so much for your review, Jennifer! We're so glad you took a chance on us by ordering a Westerly with your bottoms! If you have lots of excess fabric in the ties, you may want to size down; especially if you feel any roominess anywhere else.

  • LP
    Lauren P.
    Verified Buyer
    Westerly Tie-Front Bikini Top
    Reviewing
    Westerly Tie-Front Bikini Top
    I recommend this product
    What is your typical bra size? 36D
    What size did you purchase? XL
    Rated 5 out of 5 stars
    4 months ago
    Perfect for the girls!!

    Obsessed!!!! I’m at 36 D and loveeeee the support of this top!!! It is so sexy while at the same time being something I’d be absolutely comfortable wearing around family! I’m SO excited to wear this to the beach, pool or spa!!! 10/10, I got an XL and could likely have gone down to the L but love the extra comfort the XL gives!

    Overall FitRated 0.0 on a scale of minus 2 to 2
    O Profile picture for onewith
    onewith
    3 months ago

    Thank you so much for your incredible review, Lauren! We're thrilled to hear you're obsessed with the fit and support of your Westerly top. Finding that ideal balance of sexy and comfortable is everything, and we couldn't be happier our swimwear has provided you with both style and confidence. Enjoy rocking your new suit at the beach, pool or spa all summer long!

  • SB
    Sara B.
    Verified Buyer
    Westerly Tie-Front Bikini Top
    Reviewing
    Westerly Tie-Front Bikini Top
    I recommend this product
    What is your typical bra size? 36C
    What size did you purchase? L
    Rated 5 out of 5 stars
    4 months ago
    Very comfortable

    The top is very comfortable and flattering. I would not recommend this style if you're well endowed. I'm a 36-C & ordered a size Large & it just barely fits/provides just enough coverage for the girls.

    Overall FitRated -1.0 on a scale of minus 2 to 2
    O Profile picture for onewith
    onewith
    3 months ago

    Thank you so much for your review, Sara! We're thrilled to hear your Westerly is comfortable and flattering :) We appreciate you sharing your experience to help guide others toward a style that may provide a bit more coverage and support. Please do note, you scoop, lift, and tie to achieve the best Westerly fit. Hope this helps!

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