Your cart

International Shipping now available!

We’re open! Free US shipping on orders over $75 + easy returns. For more delivery info ->

Buff micro mesh is universally flattering
Belgian micromesh is surprisingly supportive [Aube 1]
Hook & eye closure in the back [Aube 1]
Shown here with our Sieve Thong in Buff [Aube 1]
[Hannah 4]
[Hannah 4]
[Hannah 4]
Surprisingly supportive for a bralette
  • Thumbnail image #1 of Sieve Triangle Bra in Buff
  • Thumbnail image #2 of Sieve Triangle Bra in Buff [Aube 1]
  • Thumbnail image #3 of Sieve Triangle Bra in Buff [Aube 1]
  • Thumbnail image #4 of Sieve Triangle Bra in Buff [Aube 1]
  • Thumbnail image #5 of Sieve Triangle Bra in Buff [Hannah 4]
  • Thumbnail image #6 of Sieve Triangle Bra in Buff [Hannah 4]
  • Thumbnail image #7 of Sieve Triangle Bra in Buff [Hannah 4]
  • Thumbnail image #8 of Sieve Triangle Bra in Buff
Product photo #1 of Sieve Triangle Bra in Buff Product photo #2 of Sieve Triangle Bra in Buff [Aube 1] Product photo #3 of Sieve Triangle Bra in Buff [Aube 1] Product photo #4 of Sieve Triangle Bra in Buff [Aube 1] Product photo #5 of Sieve Triangle Bra in Buff [Hannah 4] Product photo #6 of Sieve Triangle Bra in Buff [Hannah 4] Product photo #7 of Sieve Triangle Bra in Buff [Hannah 4] Product photo #8 of Sieve Triangle Bra in Buff

Sieve Triangle Bra

Rated 4.4 out of 5
158 Reviews

Surprising support. Deep v neckline.

Our signature Sieve mesh in a lower coverage triangle cut.
 
Only a few left!

Planned restock: November 2020

Free shipping over $75. 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 caramel-y sunrise desert sands affogato 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 21 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

Pair it with ->

Sieve Non-Wire Bra in Buff Sieve Non-Wire Bra in Buff
Sieve Non-Wire Bra in Buff $60 +
Rated 4.6 out of 5
1369 Reviews
Silky Non-Wire Bra 2.0 in Buff Silky Non-Wire Bra 2.0 in Buff
Silky Non-Wire Bra 2.0 in Buff $65 +
Rated 4.6 out of 5
282 Reviews
Lined Sieve Demi Bra in Buff Lined Sieve Demi Bra in Buff
Lined Sieve Demi Bra in Buff $75
Rated 4.6 out of 5
5 Reviews
Sieve Demi Bra in Buff Sieve Demi Bra in Buff
Sieve Demi Bra in Buff $75
Rated 4.7 out of 5
300 Reviews
Write a Review
average rating 4.4 out of 5
Based on 158 reviews
  • 5 Stars
    101 Reviews
  • 4 Stars
    27 Reviews
  • 3 Stars
    26 Reviews
  • 2 Stars
    2 Reviews
  • 1 Star
    2 Reviews
91% of reviewers would recommend this product to a friend
Overall
Rated -1 on a scale of minus 2 to 2, where minus 2 is Loved it, 0 is Meh and 2 is Hated it
Quality
Rated 4 out of 5
Comfort
Rated 4 out of 5
158 Reviews
Reviewed by Shana s.
Verified Buyer
Sieve Triangle Bra in Black
Reviewing
Sieve Triangle Bra in Black
I recommend this product
Size Purchased
3
How it Fits
A Little Small
Age
45 - 54
Bra Size
36C
Rated 5 out of 5
Review posted

LOVE IT

I really love my bra

Loading...
Overall
Rated -2 on a scale of minus 2 to 2, where minus 2 is Loved it, 0 is Meh and 2 is Hated it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Johanna
Verified Buyer
Sieve Triangle Bra in Black
Reviewing
Sieve Triangle Bra in Black
I recommend this product
Size Purchased
1
How it Fits
True to Size
Age
45 - 54
Bra Size
32B
Rated 5 out of 5
Review posted

Love your products!

I noticed that my undies drawer had filled up with frilly pieces, and it took me a while to find cool, contemporary basics that felt and looked like Negative. I’m looking forward to your upcoming colors.

Loading...
Overall
Rated -2 on a scale of minus 2 to 2, where minus 2 is Loved it, 0 is Meh and 2 is Hated it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Jessica W.
Verified Buyer
Sieve Triangle Bra in Black
Reviewing
Sieve Triangle Bra in Black
I recommend this product
Size Purchased
4
How it Fits
True to Size
Age
25 - 34
Bra Size
36D
Rated 5 out of 5
Review posted

THE BEST BRA EVER

I have never put on anything more comfortable than this bra. It’s sexy, yet comfy. The fit is perfect. I’m a 36D and the XL (4) fits me very well.

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

New color launching soon

Sign up to be first to know!

Non-Wire Bra Sizing

Size Chart

Q’s about sizing or fit? Email us at hello@negativeunderwear.com

@negativeunderwear