Give $20, get $20. Win win.
Free US shipping on orders over $100. Easy returns.
Skip to main content
Your cart
Buy more, save money
[Ksenia 1]
[Ksenia 1]
Sieve Non-Wire Bra in Black
[Ksenia 1]
[Vitoria 3+]
[Vitoria 3+]
[Vitoria 3+]
Sieve Non-Wire Bra in Black
flat
Thumbnail image #1 of Sieve Non-Wire Bra in Black [Ksenia 1]
Thumbnail image #2 of Sieve Non-Wire Bra in Black [Ksenia 1]
Thumbnail image #3 of Sieve Non-Wire Bra in Black
Thumbnail image #4 of Sieve Non-Wire Bra in Black [Ksenia 1]
Thumbnail image #5 of Sieve Non-Wire Bra in Black [Vitoria 3+]
Thumbnail image #6 of Sieve Non-Wire Bra in Black [Vitoria 3+]
Thumbnail image #7 of Sieve Non-Wire Bra in Black [Vitoria 3+]
Thumbnail image #8 of Sieve Non-Wire Bra in Black
Buy more, save money
[Ksenia 1]
[Ksenia 1]
Sieve Non-Wire Bra in Black
[Ksenia 1]
[Vitoria 3+]
[Vitoria 3+]
[Vitoria 3+]
Sieve Non-Wire Bra in Black

Sieve Non-Wire Bra

4.6
Rated 4.6 out of 5 stars
4,677 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 Thong in Black Sieve Thong in Black (alternate view) Sieve Thong in Black $32 +
Sieve String Thong in Black Sieve String Thong in Black (alternate view) Sieve String Thong in Black $30
Sieve Brief in Black Sieve Brief in Black (alternate view) Sieve Brief in Black $35 +
Sieve High-Waist Brief in Black Sieve High-Waist Brief in Black (alternate view) Sieve High-Waist Brief in Black $45 +
4.6
Rated 4.6 out of 5 stars
Based on 4,677 reviews
Write a Review (Opens in a new window)
4,677 reviews
  • Sara B.
    Verified Buyer
    Size Purchased 1
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 32C
    3 minutes ago
    Size Purchased 1
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 32C
    Sieve Non-Wire Bra in Coral
    Reviewing
    Sieve Non-Wire Bra in Coral
    Rated 5 out of 5 stars
    I’ve found my new favorite bra!

    This is the bra I want to wear everyday. I didn’t realize I how uncomfortable my bras were until I tried this bra. Game changer!

    Was this helpful?
  • D D.
    Verified Buyer
    Size Purchased 1
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 32C
    6 hours ago
    Size Purchased 1
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 32C
    Sieve Non-Wire Bra in Cherry
    Reviewing
    Sieve Non-Wire Bra in Cherry
    Rated 5 out of 5 stars
    Love the color

    Great material. Very comfortable

    Was this helpful?
  • D D.
    Verified Buyer
    Size Purchased 1
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 32C
    6 hours ago
    Size Purchased 1
    How it Fits True to Size
    Age Range 55 - 64
    Bra Size 32C
    Sieve Non-Wire Bra in Black
    Reviewing
    Sieve Non-Wire Bra in Black
    Rated 5 out of 5 stars
    Love it

    Great fit. Great support. Very comfortable

    Was this helpful?
  • Shannon C.
    Verified Buyer
    Size Purchased 5
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 40D
    7 hours ago
    Size Purchased 5
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 40D
    Sieve Non-Wire Bra in Buff
    Reviewing
    Sieve Non-Wire Bra in Buff
    Rated 5 out of 5 stars
    Perfect

    This is a perfect bra for everyday wear!

    Was this helpful?
  • Laura G.
    Verified Buyer
    Size Purchased 3
    How it Fits True to Size
    Age Range 65+
    Bra Size 34D
    13 hours 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?
Reviews LoadedReviews Added
Detail view of Sieve Non-Wire Bra in Black for sizer

@negativeunderwear