Free U.S. Shipping on orders over $100; easy returns
International Shipping now available!
Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
  • Thumbnail image #1 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
  • Thumbnail image #2 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
  • Thumbnail image #3 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
  • Thumbnail image #4 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
  • Thumbnail image #5 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
  • Thumbnail image #6 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
  • Thumbnail image #7 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
  • Thumbnail image #8 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)
Product photo #1 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack) Product photo #2 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack) Product photo #3 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack) Product photo #4 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack) Product photo #5 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack) Product photo #6 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack) Product photo #7 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack) Product photo #8 of Sieve Triangle Bra in Black and in Buff and in Slate (3 Pack)

Sieve Triangle Bra in Black and Buff and Slate (3 Pack)

Rated 4.5 out of 5
Based on 1433 reviews

Our signature mesh in a deep v cut x3


A plunge neckline triangle bralette in our best selling micromesh. A hybrid of support, comfy, sexy, cool — aka winning. 
Sieve Triangle Bra in Black
Sieve Triangle Bra in Buff
Sieve Triangle Bra in Slate

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're near the top of a size range and/or prefer more coverage, you may want to size up.
  • Triangle cut has lower coverage in both the cups and the sides. 

Fabric + Care

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

FAQ

  • 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 4.5 out of 5
Based on 1433 reviews
  • 5 Stars
    1032 Reviews
  • 4 Stars
    181 Reviews
  • 3 Stars
    123 Reviews
  • 2 Stars
    57 Reviews
  • 1 Star
    40 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
1433 Reviews
Reviewed by heather B.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
2
How it Fits
A Little Small
Age Range
55 - 64
Bra Size
32DD/E

much thanx

excellent perfect shade, perfect for any occasion

Loading...
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 Kathryn J.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
1
How it Fits
True to Size
Age Range
35 - 44
Bra Size
32C

Favorite bra of all time

I absolutely love the sieve triangle bra. It’s super comfy and sexy at the same time. Adding cherry to my mix, I now have 5 of these.

Loading...
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 Rose H.
Verified Buyer
Review posted
Rated 3 out of 5
Size Purchased
2
How it Fits
True to Size
Age Range
45 - 54
Bra Size
32D

a good as is fit

The bra is perfectly comfortable and holds your shape as your shape exists. It may be fine for a comfortable wear, but will return because it seems like I would need more support.

Loading...
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 5 out of 5
Comfort
Rated 4 out of 5
Was this helpful?