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[Ksenia 1]
[Ksenia 1]
Sieve Triangle Bra in White Boa
[Ksenia 1]
flat
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Buy more, save money
[Ksenia 1]
[Ksenia 1]
Sieve Triangle Bra in White Boa
[Ksenia 1]

Sieve Triangle Bra

4.5
Rated 4.5 out of 5 stars
2,085 Reviews

Surprising support. Deep v neckline.


Our signature Sieve mesh in a lower coverage triangle cut. Great shape - no pad or wire included. Create a custom 2 Pack ->
BlackBuffSlateBuff + WhitePeachWhiteNavyBuff + BlackCherryCoralCoral + WhiteHazeMoonWhite BoaNEWPunch

Buy more, save $

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
  • Tonal medium/pale grey snakeskin print on white base
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • Wireless
  • Hand wash in cold water, dry flat

FAQ

  • Price-slashed, Annual Sale items with a red SALE tag are direct size exchange only (no refunds). Full-priced items purchased with the 20% off discount are eligible for refund, credit or exchange. Click here 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

Looks good with ->

Sieve Non-Wire Bra in White Boa Sieve Non-Wire Bra in White Boa (alternate view) Sieve Non-Wire Bra in White Boa $70 +
Sieve Thong in White Boa Sieve Thong in White Boa (alternate view) Sieve Thong in White Boa $32 +
Sieve Brief in White Boa Sieve Brief in White Boa (alternate view) Sieve Brief in White Boa $35 +
4.5
Rated 4.5 out of 5 stars
Based on 2,085 reviews
Write a Review (Opens in a new window)
2,085 reviews
  • Sarah B.
    Verified Buyer
    Size Purchased 3
    How it Fits A Little Small
    Age Range 35 - 44
    Bra Size 36B
    26 minutes ago
    Size Purchased 3
    How it Fits A Little Small
    Age Range 35 - 44
    Bra Size 36B
    Sieve Triangle Bra in Navy
    Reviewing
    Sieve Triangle Bra in Navy
    Rated 5 out of 5 stars
    Great Products

    I ordered this in a #3 I’m

    A 36B to 38C once I exchanged it for a #4 it was a perfect it!!

    Was this helpful?
  • Lauren C.
    Verified Buyer
    Size Purchased 3
    How it Fits Runs Small
    Age Range 45 - 54
    Bra Size 32DDD/F
    4 hours ago
    Size Purchased 3
    How it Fits Runs Small
    Age Range 45 - 54
    Bra Size 32DDD/F
    Sieve Triangle Bra in Navy
    Reviewing
    Sieve Triangle Bra in Navy
    Rated 1 out of 5 stars
    cups have very little coverage

    the cups do not cover the breast area that needs coverage, not even the nipples

    Was this helpful?
  • Meredith P.
    Verified Buyer
    Size Purchased 3
    How it Fits A Little Big
    Age Range 45 - 54
    Bra Size 36B
    Yesterday
    Size Purchased 3
    How it Fits A Little Big
    Age Range 45 - 54
    Bra Size 36B
    Sieve Triangle Bra in Black
    Reviewing
    Sieve Triangle Bra in Black
    Rated 4 out of 5 stars
    Very comfortable

    It is very comfortable and supportive. Also sexy. I went with the size 3 for more coverage and the cups might be a tad large, but still work for me. Size 34-36 B-C post mastectomy

    Was this helpful?
  • kelli w.
    Verified Buyer
    Size Purchased 4
    How it Fits A Little Small
    Age Range 35 - 44
    Bra Size 36B
    Yesterday
    Size Purchased 4
    How it Fits A Little Small
    Age Range 35 - 44
    Bra Size 36B
    Sieve Triangle Bra in Navy
    Reviewing
    Sieve Triangle Bra in Navy
    Rated 5 out of 5 stars
    Comfort

    My favorite Negative bra. The deep V is functional with all tops and doesn’t compromise support.

    Was this helpful?
  • Tammy A.
    Verified Buyer
    Size Purchased 5
    How it Fits True to Size
    Age Range 35 - 44
    Bra Size Other
    2 days ago
    Size Purchased 5
    How it Fits True to Size
    Age Range 35 - 44
    Bra Size Other
    Sieve Triangle Bra in Navy
    Reviewing
    Sieve Triangle Bra in Navy
    Rated 5 out of 5 stars
    Triangle

    The shape and fit are perfect!

    Was this helpful?
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Detail view of Sieve Triangle Bra in White Boa for sizer

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