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

Rated 4.4 out of 5
Based on 1107 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 4.4 out of 5
Based on 1107 reviews
  • 5 Stars
    785 Reviews
  • 4 Stars
    140 Reviews
  • 3 Stars
    99 Reviews
  • 2 Stars
    49 Reviews
  • 1 Star
    34 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
1107 Reviews
Reviewed by Sara
Verified Buyer
Review posted
I don't recommend this product
Rated 1 out of 5
Size Purchased
1
How it Fits
True to Size
Age Range
25 - 34
Bra Size
32B

Strap broke first time wearing it.

The strap on this bra broke the first time I put it on. I have several of these bras because they are so comfortable, but I guess I will need to keep safety pins in my purse in case they break!

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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 1 out of 5
Comfort
Rated 4 out of 5
Was this helpful?
Reviewed by Annette A.
Verified Buyer
Review posted
Rated 3 out of 5
Size Purchased
3
How it Fits
A Little Small
Age Range
55 - 64
Bra Size
36C

😐

Same as the thong - what’s with the stuff elastic. Also it pushed up fat in areas I didn’t know I had like underarms.

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Overall
Rated -1 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 3 out of 5
Comfort
Rated 2 out of 5
Was this helpful?
Reviewed by Ashley W.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
4
How it Fits
A Little Small
Age Range
45 - 54
Bra Size
36D

Great!

Great bra. Usually a size 36D , guide recommended size 3 didn’t fit well. Exchange was easy and fast. Size 4 is perfect!

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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?