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Slate is a cool grey-blue [Aube 1]
Hook & eye closure in the back [Aube 1]
Shown here with our matching Sieve Thong in Slate [Aube 1]
Our signature power mesh in a deep v neckline bralette [Paula 1]
Slate is a steely grey blue tone [Paula 1]
Belgian micromesh is sheer and strong
  • Thumbnail image #1 of Sieve Triangle Bra in Slate [Aube 1]
  • Thumbnail image #2 of Sieve Triangle Bra in Slate [Aube 1]
  • Thumbnail image #3 of Sieve Triangle Bra in Slate [Aube 1]
  • Thumbnail image #4 of Sieve Triangle Bra in Slate [Paula 1]
  • Thumbnail image #5 of Sieve Triangle Bra in Slate [Paula 1]
  • Thumbnail image #6 of Sieve Triangle Bra in Slate
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Product photo #1 of Sieve Triangle Bra in Slate [Aube 1] Product photo #2 of Sieve Triangle Bra in Slate [Aube 1] Product photo #3 of Sieve Triangle Bra in Slate [Aube 1] Product photo #4 of Sieve Triangle Bra in Slate [Paula 1] Product photo #5 of Sieve Triangle Bra in Slate [Paula 1] Product photo #6 of Sieve Triangle Bra in Slate

Sieve Triangle Bra in Slate

Rated 4.4 out of 5
Based on 554 reviews

Surprising support. Deep v neckline.


Our signature Sieve mesh in a lower coverage triangle cut.
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Fit

  • Size Chart
  • Use this as a guide. Preference is a huge factor — the benefit of a non-wire is they're super flexible, so you will likely fit in more than one size. Like a looser band? Size up! Like less coverage? Size down! Still unsure? Try two sizes :)
  • Adjustable straps and hook & eye closure in the back
  • *Note, our Sieve Triangle Bra is an intentionally lower coverage in both the cups and the sides. Wide plush elastic band is extremely adaptable.

Fabric + Care

  • Size Chart
  • Made from a sheer Belgian power micromesh — nipples are visible
  • A steely grey-blue tone
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • Hand wash in cold water, dry flat

FAQ

  • All 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
average rating 4.4 out of 5
Based on 554 reviews
  • 5 Stars
    384 Reviews
  • 4 Stars
    69 Reviews
  • 3 Stars
    56 Reviews
  • 2 Stars
    29 Reviews
  • 1 Star
    16 Reviews
88% of reviewers would recommend this product to a friend
554 Reviews
Reviewed by Gail S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Comfy, sexy, and supportive!

Great fit — put it on and never thought about it again all day. No tugging or pulling or adjusting whatsoever. Also, this fabric and style are super sexy!

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Reviewed by Carol M.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Love it!!!

Love it!!!

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Reviewed by Maria M.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Sieve Triangle Bra

I decided to try this style of bra to see if it was supportive enough as have worn wired bras forever. In my 70’s, am a 38D, ordered a size 4. The most comfortable bra I have ever worn, definitely supportive enough, yet feels like wearing nothing. For a woman that cannot wait to get out of my bra, this one I could wear all day.

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