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Sieve Triangle Bra in White
Sieve Triangle Bra in White
Sieve Triangle Bra in White
Sieve Triangle Bra in White
Sieve Triangle Bra in White
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Sieve Triangle Bra in White Sieve Triangle Bra in White Sieve Triangle Bra in White Sieve Triangle Bra in White Sieve Triangle Bra in White

Sieve Triangle Bra

4.5
Rated 4.5 out of 5 stars
1,756 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 ->
NEW

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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

Pair it with ->

Sieve String Thong in White Sieve String Thong in White (alternate view) Sieve String Thong in White $30
Cotton High Waist Brief in White (Pack) Cotton High Waist Brief in White (Pack) (alternate view) Cotton High Waist Brief in White (Pack) $50 +
Whipped French Cut Brief in White Whipped French Cut Brief in White (alternate view) Whipped French Cut Brief in White $45
Essaouira Thong in White Essaouira Thong in White (alternate view) Essaouira Thong in White $32
4.5
Rated 4.5 out of 5 stars
Based on 1,756 reviews
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1,756 reviews
  • Allison S.
    Verified Buyer
    Size Purchased 3
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 34DD/E
    3 minutes ago
    Size Purchased 3
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 34DD/E
    Sieve Triangle Bra in Buff
    Reviewing
    Sieve Triangle Bra in Buff
    Rated 4 out of 5 stars
    The most Comfortable Bra

    Love this bra. I’m large chested and usually spill out with other bras. This bra fits like a glove and has a bit of stretch in the cup to fit comfortably.

    Was this helpful?
  • Rhonda B.
    Verified Buyer
    Size Purchased 4
    How it Fits A Little Small
    Age Range 65+
    Bra Size 34D
    17 hours ago
    Size Purchased 4
    How it Fits A Little Small
    Age Range 65+
    Bra Size 34D
    Sieve Triangle Bra in Slate
    Reviewing
    Sieve Triangle Bra in Slate
    Rated 5 out of 5 stars
    TRIANGLE

    It makes me feel pretty.

    Was this helpful?
  • Dominique S.
    Verified Buyer
    Size Purchased 1
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32B
    21 hours ago
    Size Purchased 1
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32B
    Sieve Triangle Bra in Peach
    Reviewing
    Sieve Triangle Bra in Peach
    Rated 5 out of 5 stars
    Amazing bra!

    Wanted one of these bras for a long while, finally decided to try. Never going back to a regular bra.

    Was this helpful?
  • Dominique S.
    Verified Buyer
    Size Purchased 1
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32B
    21 hours ago
    Size Purchased 1
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32B
    Sieve Triangle Bra in Black
    Reviewing
    Sieve Triangle Bra in Black
    Rated 5 out of 5 stars
    Amazing!

    Love the fit! The see through is amazing! (And a perfect secret for me.)

    Was this helpful?
  • nick p.
    Verified Buyer
    Size Purchased 2
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32DD/E
    23 hours ago
    Size Purchased 2
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32DD/E
    Sieve Triangle Bra in White
    Reviewing
    Sieve Triangle Bra in White
    Rated 5 out of 5 stars
    perfect gift

    wife loved it

    Was this helpful?
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Non-Wire Bra Sizing

Non-Wire Bra Sizing Size Chart

* Non-wire bra sizing can vary by preference and if you're toward the top of a size range and prefer more coverage, you may want to size up. For styles available in + sizes (designed with additional support details for our larger cup customers), we find DD's can be on the cusp - if you prefer more coverage and support, we suggest the + bra equivalent for your band size.

Btw, the size nomenclature has changed for Bra Tops. Here's the conversion:
XS=0, S=1, M=2, L=3, XL=4, XXL=5

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

Detail view of Sieve Triangle Bra in White for sizer

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