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“Ok cool, you launched your Huntington thong bikini bottom…but I really only wear HIGH WAISTED thongs. When are you coming out with that?” 

We hear you, and we raise you: Penfield.

A dipped high-waist front with a Brazilian-cut back. It’s almost *too* good, and really hits our ‘swimsuits that feel like underwear’ concept home. onewith’s inner grip tape at the top edge and along the legline holds Penfield in place, while our elastic-free and better-than-seamless swimwear bonding ensures that nothing pinches or squeezes, for totally dig-free swimwear look that is beyonddd cheeky.   

To balance out Penfield’s booty-loving back, we love pairing Penfield with our Thames Scoop Neck Bikini Top, which has more coverage in the back. 

📏 fit note: if you’re not sure which size is best for you, check your measurements against our size chart here. And if you end up between sizes, we recommend you size down for this style.

bathing suit that fits like underwear

Penfield High Waist Thong Bikini Bottom

Regular price $47.00
Unit price
per 
4.0
Rated 4.0 out of 5 stars
20 Reviews
Availability
 
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1 Free Exchange
14-Day Returns
Ships from CT, USA
Shipping calculated at checkout.

see it on 👀

see our size guide/take our sizing quiz for sizing tips!

80% nylon, 20% elastane

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FREE shipping on all US orders over $85

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“Ok cool, you launched your Huntington thong bikini bottom…but I really only wear HIGH WAISTED thongs. When are you coming out with that?” 

We hear you, and we raise you: Penfield.

A dipped high-waist front with a Brazilian-cut back. It’s almost *too* good, and really hits our ‘swimsuits that feel like underwear’ concept home. onewith’s inner grip tape at the top edge and along the legline holds Penfield in place, while our elastic-free and better-than-seamless swimwear bonding ensures that nothing pinches or squeezes, for totally dig-free swimwear look that is beyonddd cheeky.   

To balance out Penfield’s booty-loving back, we love pairing Penfield with our Thames Scoop Neck Bikini Top, which has more coverage in the back. 

📏 fit note: if you’re not sure which size is best for you, check your measurements against our size chart here. And if you end up between sizes, we recommend you size down for this style.

bathing suit that fits like underwear

4.0
Rated 4.0 out of 5 stars
Based on 20 reviews
Total 5 star reviews: 11 Total 4 star reviews: 4 Total 3 star reviews: 1 Total 2 star reviews: 3 Total 1 star reviews: 1
20 reviews
  • LB
    Liz B.
    Verified Buyer
    2 days ago
    Penfield High Waist Thong Bikini Bottom
    Reviewing
    Penfield High Waist Thong Bikini Bottom
    Rated 5 out of 5 stars
    Truly fits like comfy undies

    I have struggled for years to find a bathing suit bottom that fits my booty and larger thighs, and goes high enough so that I feel somewhat covered up. These bottoms fit like my comfiest underwear and don’t dig in like most other bathing suit brands do. I highly recommend the high waist thong for any curvy gurlies who are sick of unflattering bathing suit options digging into your butt and thighs. These are super sexy and super comfortable. 🔥🔥🔥

    O Profile picture for onewith
    onewith
    Yesterday

    Hi Liz, thank you so much for your incredible review! We're thrilled to hear you've finally found the perfect, comfy-yet-sexy fit with our Penfield! We so appreciate you sharing and your recommendation for other women with a similar body type. Enjoy your onewith!

  • LF
    Lacey F.
    Verified Buyer
    3 weeks ago
    Penfield High Waist Thong Bikini Bottom - Buzzin | FINAL SALE
    Reviewing
    Penfield High Waist Thong Bikini Bottom - Buzzin | FINAL SALE
    Rated 5 out of 5 stars
    Perfect Bottoms!

    Excellent quality and fit. Will most definitely purchase more!

    O Profile picture for onewith
    onewith
    Yesterday

    Hi Lacey, thank you so much for your amazing 5-star review! We're thrilled to hear the quality and fit of the Longshore exceeded your expectations. We can't wait to have you shop with us again soon!

  • HH
    Heather H.
    Verified Buyer
    2 months ago
    Penfield High Waist Thong Bikini Bottom
    Reviewing
    Penfield High Waist Thong Bikini Bottom
    Rated 5 out of 5 stars
    Great fit

    This bottom is super comfortable and fits just like no show underwear!

    O Profile picture for onewith
    onewith
    1 month ago

    Hi Heather, thank you so much for this review! We're so glad to hear you found the Penfield to fit just like your favorite no-show undies, and that it's super comfortable. Enjoy your onewith 🌊

  • M
    Melissa
    Verified Reviewer
    2 months ago
    Penfield High Waist Thong Bikini Bottom
    Reviewing
    Penfield High Waist Thong Bikini Bottom
    Rated 5 out of 5 stars
    Flattering and Comfortable (order a size down)

    My husband purchased this for me as a gift. I was skeptical at first, but this is a very flattering bikini that is comfortable to wear. It's sexy, yet sophisticated. Loved the Honey Spots pattern and fit.

    O Profile picture for onewith
    onewith
    1 month ago

    Hi Melissa, thank you so much for this review! Your husband outdid himself with the gift-giving 🤩 The Penfield in Honey Spots is so flattering on you, and we're so happy to hear you love it! Enjoy your onewith :)

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