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

Rated 4.4 out of 5
Based on 1128 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 White

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 1128 reviews
  • 5 Stars
    800 Reviews
  • 4 Stars
    142 Reviews
  • 3 Stars
    102 Reviews
  • 2 Stars
    49 Reviews
  • 1 Star
    35 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
1128 Reviews
Reviewed by Carey L.
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
34B

So comfortable!

This if my 4th Sieve Triangle Bra, and I couldn't resist this color combo. This bra is super comfortable and cute!

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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 Tammie S.
Verified Buyer
Review posted
I recommend this product
Rated 4 out of 5
Size Purchased
3
How it Fits
A Little Small
Age Range
55 - 64
Bra Size
36C

Wanted to love it

I love the theory and the quality is outstanding, but it is just to small. It definitely doesn’t cover me like the pictures. Also, the return policy for anyone who has an APO address is non-existent., even though we have a normal USA post office and they sent it with no problem.

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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 5 out of 5
Comfort
Rated 4 out of 5
Was this helpful?
Reviewed by donna s.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
2
How it Fits
A Little Small
Age Range
45 - 54
Bra Size
34C

gorgeous

so pretty and comfortable. and breathable!!

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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?