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[Ksenia 1]
[Ksenia 1]
[Ksenia 1]
[Ksenia 1]
Sieve Non-Wire Bra in Navy
[Vitoria 3+]
[Vitoria 3+]
flat
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Buy more, save money
[Ksenia 1]
[Ksenia 1]
[Ksenia 1]
[Ksenia 1]
Sieve Non-Wire Bra in Navy
[Vitoria 3+]
[Vitoria 3+]

Sieve Non-Wire Bra

4.6
Rated 4.6 out of 5 stars
4,673 Reviews

Our best selling bra for a reason.


The most supportive of our wireless bras. Great shape, naturally smoothing, airy light and sexy sheer — Belgian micromesh might just be magic. Create a custom 2 Pack ->
BlackBuffBuff + WhiteGraphiteNavyPeachSlateWhiteBuff + BlackCherryCoralNEWGlacierWhite Boa

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.

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

  • 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 Triangle Bra in Navy Sieve Triangle Bra in Navy (alternate view) Sieve Triangle Bra in Navy $70 +
Whipped Non-Wire Bra in Navy Whipped Non-Wire Bra in Navy (alternate view) Whipped Non-Wire Bra in Navy $68 +
Whipped Boy Short in Navy Whipped Boy Short in Navy (alternate view) Whipped Boy Short in Navy $45 +
Sieve Thong in Navy Sieve Thong in Navy (alternate view) Sieve Thong in Navy $32 +
4.6
Rated 4.6 out of 5 stars
Based on 4,673 reviews
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4,673 reviews
  • Laura G.
    Verified Buyer
    Size Purchased 3
    How it Fits True to Size
    Age Range 65+
    Bra Size 34D
    6 minutes ago
    Size Purchased 3
    How it Fits True to Size
    Age Range 65+
    Bra Size 34D
    Sieve Non-Wire Bra in Peach
    Reviewing
    Sieve Non-Wire Bra in Peach
    Rated 5 out of 5 stars
    Once right size found, pure satisfaction

    I loved how it fit -ALMOST. Ordered a size 2 and I couldn’t believe the comfort and natural support until I noticed a bit of a pop up from the top of the bra at center. So I ordered a 3 - AND NOW MY LOVE IS STRONG AND CONSTANT!!! And my ‘girls’ are singing.

    Was this helpful?
  • Tracy S.
    Verified Buyer
    Size Purchased 4
    How it Fits A Little Big
    Age Range 55 - 64
    Bra Size 34D
    15 minutes ago
    Size Purchased 4
    How it Fits A Little Big
    Age Range 55 - 64
    Bra Size 34D
    Sieve Non-Wire Bra in Navy
    Reviewing
    Sieve Non-Wire Bra in Navy
    Rated 5 out of 5 stars
    My New Sieve Bra

    Absolutely Love!!!

    Was this helpful?
  • Leilani S.
    Verified Buyer
    Size Purchased 3
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 36C
    1 hour ago
    Size Purchased 3
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 36C
    Sieve Non-Wire Bra in Slate
    Reviewing
    Sieve Non-Wire Bra in Slate
    Rated 5 out of 5 stars
    Just as promised

    Light weight, secure and comfortable. Love the color, ordering more. Nice step up from a cheap bralette.

    Was this helpful?
  • Jessica F.
    Verified Buyer
    Size Purchased 3
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 36C
    2 hours ago
    Size Purchased 3
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 36C
    Sieve Non-Wire Bra in Buff + White
    Reviewing
    Sieve Non-Wire Bra in Buff + White
    Rated 5 out of 5 stars
    Cloud Puff Dream Bra

    Really like this bra for under sweaters or loose-fitting collared shirts because it is so cloud-like and lightweight. I don’t wear it under tees because I’m not totally comfortable with nipping out (or showing the white lining), but if that doesn’t bother you, this would make an excellent everyday bra. My measurements are 36 C and that is exactly how the size 3 fits. It’s dreamy.

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  • Alexis O.
    Verified Buyer
    Size Purchased 2
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 36B
    9 hours ago
    Size Purchased 2
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 36B
    Sieve Non-Wire Bra in Navy
    Reviewing
    Sieve Non-Wire Bra in Navy
    Rated 5 out of 5 stars
    Love

    I was worried about the support when I ordered, but this is a great bra with plenty of support. Comfortable too!

    Was this helpful?
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Detail view of Sieve Non-Wire Bra in Navy for sizer

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