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Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
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Buy more, save money
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack

Sieve Triangle Bra Custom 2-Pack

4.5
Rated 4.5 out of 5 stars
2,066 Reviews

Surprising support. Deep v neckline.

Our signature Sieve mesh in a lower coverage triangle cut. Great shape - no pad or wire included.
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra in Black
Sieve Triangle Bra in Buff
Sieve Triangle Bra in Slate
Sieve Triangle Bra in Buff + White
Sieve Triangle Bra in Buff + Black
Sieve Triangle Bra in Cherry
Sieve Triangle Bra in Peach
Sieve Triangle Bra in White
Sieve Triangle Bra in Coral
Sieve Triangle Bra in Coral + White
Sieve Triangle Bra in Navy
Sieve Triangle Bra in Haze
Sieve Triangle Bra in Moon
Sieve Triangle Bra in White Boa

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
  • A caramel-y sunrise desert sands affogato tone
  • 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
4.5
Rated 4.5 out of 5 stars
Based on 2,066 reviews
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2,066 reviews
  • Francesca H.
    Verified Buyer
    Size Purchased M
    How it Fits True to Size
    Age Range 65+
    Bra Size 36DD/E
    3 minutes ago
    Size Purchased M
    How it Fits True to Size
    Age Range 65+
    Bra Size 36DD/E
    Sieve Triangle Bra in Navy
    Reviewing
    Sieve Triangle Bra in Navy
    Rated 5 out of 5 stars
    no title

    Surprising conforrable. I am delighted.

    Was this helpful?
  • Portia W.
    Verified Buyer
    Size Purchased 4
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 38C
    16 hours ago
    Size Purchased 4
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 38C
    Sieve Triangle Bra in Navy
    Reviewing
    Sieve Triangle Bra in Navy
    Rated 5 out of 5 stars
    Supportive and pretty

    I’m so used to underwire, but I was pleasantly surprised by support from this bra!

    Was this helpful?
  • Mary R.
    Verified Buyer
    Size Purchased 1
    How it Fits True to Size
    Age Range 65+
    Bra Size 34A
    Yesterday
    Size Purchased 1
    How it Fits True to Size
    Age Range 65+
    Bra Size 34A
    Sieve Triangle Bra in Navy
    Reviewing
    Sieve Triangle Bra in Navy
    Rated 5 out of 5 stars
    my new fav

    This is my first purchase of this bra and it will not be the last. I love the simplicity of it in addition to the comfort and fit.

    Was this helpful?
  • Stacey R.
    Verified Buyer
    Size Purchased 2
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 34C
    Yesterday
    Size Purchased 2
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 34C
    Sieve Triangle Bra in Navy
    Reviewing
    Sieve Triangle Bra in Navy
    Rated 5 out of 5 stars
    Very pleased

    Love the weightless feel. Very sexy.

    Was this helpful?
  • Tad S.
    Verified Buyer
    Size Purchased 2
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 32C
    Yesterday
    Size Purchased 2
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 32C
    Sieve Triangle Bra in Buff + White
    Reviewing
    Sieve Triangle Bra in Buff + White
    Rated 5 out of 5 stars
    Perfect gift

    Bought them as a surprise for my wife. SHE LOVES THEM!

    Was this helpful?
Reviews LoadedReviews Added

Non-Wire Bra Sizing

Your underbust: A B C D DD DDD G
24-26" 30 0 0 0 1 1* 1+
26-28" 32 0 0 1 2 2* 1+ 1+
28-30" 34 1 1 2 2 3* 2+ 2+
30-32" 36 1 2 3 3 4* 3+ 3+
32-34" 38 3 3 4 4 5* 4+ 4+
35-38" 40 3 5 5 5 5* 5+ 5+
38-40" 42 5 5 5 5*

* 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 Custom 2-Pack for sizer

@negativeunderwear