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[Ksenia 1]
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Sieve Non-Wire Bra in Black
[Ksenia 1]
[Vitoria 3+]
[Vitoria 3+]
[Vitoria 3+]
Sieve Non-Wire Bra in Black
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[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
4,233 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 ->
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.

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 Black Sieve String Thong in Black (alternate view) Sieve String Thong in Black $30
Cotton French Cut Brief in Black (Pack) Cotton French Cut Brief in Black (Pack) (alternate view) Cotton French Cut Brief in Black (Pack) $58 +
Whipped Boy Short in Black Whipped Boy Short in Black (alternate view) Whipped Boy Short in Black $45 +
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 4,233 reviews
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4,233 reviews
  • Karen T.
    Verified Buyer
    Size Purchased 5
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 38DD/E
    4 minutes ago
    Size Purchased 5
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 38DD/E
    Sieve Non-Wire Bra in Black
    Reviewing
    Sieve Non-Wire Bra in Black
    Rated 5 out of 5 stars
    Amazing!

    Unbelievably comfortable, super cute and the straps stay on my shoulders! There are no other non-racerback bras that stay on my shoulders this well. Sizing was spot on - I love that there are no measurements, you're a number 1-5. LOVE!

    Was this helpful?
  • Courtney R.
    Verified Buyer
    Size Purchased 4
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 36D
    32 minutes ago
    Size Purchased 4
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 36D
    Sieve Non-Wire Bra in Cherry
    Reviewing
    Sieve Non-Wire Bra in Cherry
    Rated 5 out of 5 stars
    So obsessed

    Love it

    Was this helpful?
  • Tara K.
    Verified Buyer
    Size Purchased 2
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 34B
    17 hours ago
    Size Purchased 2
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 34B
    Sieve Non-Wire Bra in Buff + White
    Reviewing
    Sieve Non-Wire Bra in Buff + White
    Rated 5 out of 5 stars
    Perfect for bra haters

    I've never had a bra I looked forward to wearing. I was spoiled by the pandemic because I either went without or lived in sports bras, but this has completely changed my perspective. It's super flattering and gives the perfect amount of lift but still feels like wearing next-to-nothing. I dreaded buying a new bra but look forward to getting another one of these eventually!

    Was this helpful?
  • Kelsey W.
    Verified Buyer
    Size Purchased 2+
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32DDD/F
    20 hours ago
    Size Purchased 2+
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32DDD/F
    Sieve Non-Wire Bra in White
    Reviewing
    Sieve Non-Wire Bra in White
    Rated 5 out of 5 stars
    Super Comfy

    My new favorite bra.

    Was this helpful?
  • Liza
    Verified Buyer
    Size Purchased 2
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32B
    Yesterday
    Size Purchased 2
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32B
    Sieve Non-Wire Bra in Buff + White
    Reviewing
    Sieve Non-Wire Bra in Buff + White
    Rated 5 out of 5 stars
    Sieve Non-Wire Bra

    I ordered this bra as well as the Sieve Bra Top. I enjoy both, especially the light but strong mesh material, but I prefer this one! The bralette style and coverage works for a wide range of my clothes, and that versatility combined with the comfort makes this five stars. I am a B cup.

    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 Non-Wire Bra in Black for sizer

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