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[Adelina XS]
[Adelina XS]
[Adelina XS]
[Vitoria XL]
[Vitoria XL]
[Vitoria XL]
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[Adelina XS]
[Adelina XS]
[Adelina XS]
[Vitoria XL]
[Vitoria XL]
[Vitoria XL]

Swim String Bikini in Black

4.3
Rated 4.3 out of 5 stars
22 Reviews

Negative. Does. Swim. 


A classic string bikini bottom that can be worn around the hips or pulled high to show a little extra leg. The perfect mix & match piece for every swim wardrobe. 

Free U.S. shipping on orders over $100. Easy returns.

Fit

  • Size Chart
  • Use this as a guide. Preference is a huge factor — if you prefer extra coverage, you may want to size up. 

Fabric + Care

  • Size Chart
  • Ultra smoothing stretch nylon
  • Double layered for extra opacity 
  • Can be worn around the hips or pulled high
  • Cheeky coverage bum
  • 50% Nylon and 50% Elastane
  • Lining: 80% Nylon and 20% Elastane
  • Hand wash, dry flat

FAQ

  • Price-slashed, Annual Sale items with a red SALE tag are direct size exchange only (no refunds). Full-priced items purchased with the 20% off discount are eligible for refund, credit or exchange. Click here for more info on our Sale policies.
  • All full-priced, unworn items, with tags attached and in their original packaging are eligible for return or exchange within 30 days of placing your order.
  • Please note, packs must be returned in full. We do not accept partial returns of packs.
  • Want to know our full returns policies? Here you go.
  • Want more info about shipping, materials or care instructions? Here!

    Q’s on fit or sizing? Email us at hello@negativeunderwear.com
4.3
Rated 4.3 out of 5 stars
Based on 22 reviews
22 reviews
  • Robyn S.
    Verified Buyer
    3 minutes ago
    Swim String Bikini in Black
    Reviewing
    Swim String Bikini in Black
    Rated 5 out of 5 stars
    String bikini

    Fits great - covers just enough!

  • Alaina S.
    Verified Buyer
    1 month ago
    Swim String Bikini in Cherry
    Reviewing
    Swim String Bikini in Cherry
    Rated 3 out of 5 stars
    Color is everything

    Love the color, love that I can pull it a little higher on the hips but it does seem to get “loose” when wet.

  • Meredith R.
    Verified Buyer
    2 months ago
    Swim String Bikini in Black
    Reviewing
    Swim String Bikini in Black
    Rated 4 out of 5 stars
    Perfect

    Enough coverage, but still sexy!

  • Lauren S.
    Verified Buyer
    2 months ago
    Swim String Bikini in Black
    Reviewing
    Swim String Bikini in Black
    Rated 2 out of 5 stars
    Waist band not stretchy enough, odd fit

    I wanted to love this, the fabric is wonderful, but the cut is strange and honestly not made for a curvy figure. I am a M in negative underwear no problem, but the M swim is too small and the L too big. The waist does't feel like it has enough elastic so the L was saggy and the M was too tight but not stretchy enough. Disappointed, and a little frustrated that Negative charges for returns.

  • Christine J.
    Verified Buyer
    3 months ago
    Swim String Bikini in Cherry
    Reviewing
    Swim String Bikini in Cherry
    Rated 3 out of 5 stars
    String Bikini

    Returning Runs Large IRRITATED that Negative CHARGES for Returns Now

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Detail view of Swim String Bikini in Black for sizer