





Swim One Shoulder One-Piece in Black
Swim One Shoulder One-Piece
4.8
Rated 4.8 out of 5 stars
6 Reviews
Negative. Does. Swim.
A chic and refined one piece with an asymmetrical single shoulder and delicate split straps Two layers of our smoothing stretch nylon keeps everything in place.
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Free US shipping on all orders from now through 12/31.
Fit
- Size Chart
- Use this as a guide. Preference is a huge factor — with a one piece, sizing can vary based on the length of your torso, in addition to your overall frame. If you're taller or have a proportionally longer torso, you may want to size up.
- Double layered for extra hold and support
- Two narrow rouleau cami straps wrap around one shoulder and across the back
- Retro leg hits high on the hip
- Cheeky coverage bum
- Ksenia is 5'9", dress size 2, wearing our XS
Fabric + Care
- Ultra smoothing stretch nylon hugs the body like gentle shapewear
- 50% Nylon and 50% Elastane
- Lining: 80% Nylon and 20% Elastane
- Hand wash, dry flat
FAQ
- Price-slashed, Last Chance Sale items with a red SALE tag are direct size exchange only (no refunds).
- 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



Apparel Sizing
Dress size: | 0-2 | 2-4 | 6-8 | 10-12 | 12-14 | 16-18 |
---|---|---|---|---|---|---|
Your full hip: | 34.5-36" | 36.5-38" | 38.5-40.5" | 41-42.5" | 43-44.5" | 45-46.5" |
Negative size: | XS | S | M | L | XL | XXL |
Q’s about sizing or fit? Email us at hello@negativeunderwear.com

4.8
Rated 4.8 out of 5 stars
Based on 6 reviews
6 reviews
- Lara G.Verified Buyer12 seconds agoRated 5 out of 5 starsPerfect fit
Love this suit, super flattering and fits perfectly
Was this helpful? - Jennifer T.Verified Buyer1 month agoRated 5 out of 5 starsGreat suit!
Supportive fit with beautiful lines.
Was this helpful? - Bridget De A.Verified Buyer2 months agoRated 5 out of 5 starsClassic black suit with a twist
Love the shoulder design on this swimsuit.
Was this helpful? - Gina J.Verified Buyer2 months agoRated 5 out of 5 starsExquisite
❤❤❤❤
Was this helpful? - Corinne S.Verified Buyer3 months agoRated 5 out of 5 starsLove This Swimsuit
Cute suit, great fit.
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