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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 671 reviews

Surprising support. Deep v neckline.


Our signature Sieve mesh in a lower coverage triangle cut.

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Free shipping over $100. Easy Returns.

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

  • Price slashed, Annual Sale items with a red SALE tag are final sale. Full priced items and packs purchased with the 15% off discount are eligible for refund, credit or exchange. 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
average rating 4.4 out of 5
Based on 671 reviews
  • 5 Stars
    473 Reviews
  • 4 Stars
    79 Reviews
  • 3 Stars
    66 Reviews
  • 2 Stars
    37 Reviews
  • 1 Star
    16 Reviews
88% of reviewers would recommend this product to a friend
Overall
Rated 0 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 4 out of 5
Comfort
Rated 4 out of 5
671 Reviews
Reviewed by Wendy L.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
3
How it Fits
True to Size
Age Range
55 - 64
Bra Size
36B

Comfortable

Incredibly comfortable bra with just the right support. I can’t wear wires in my bras so this is the perfect bra for me. Great nude black color, smooth under clothes and a great plunge. Love this bra.

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Overall
Rated 2 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Sandra B.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
5
How it Fits
True to Size
Age Range
45 - 54
Bra Size
36D

Triangle Haze

This one I love!

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Overall
Rated 2 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Terri Sue s.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
3
How it Fits
A Little Small
Age Range
45 - 54
Bra Size
34D

Sexy and Supportive

What a great combination, the Sieve triangle bra, an everyday bra that combines sexy and support!

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Overall
Rated 2 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?