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Sieve Non-Wire Bra

4.6
Rated 4.6 out of 5 stars
4,229 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

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
  • Tonal medium/pale grey snakeskin print on white base
  • 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 Thong in White Boa Sieve Thong in White Boa (alternate view) Sieve Thong in White Boa $32
Sieve Triangle Bra in White Boa Sieve Triangle Bra in White Boa (alternate view) Sieve Triangle Bra in White Boa $68
Sieve Brief in White Boa Sieve Brief in White Boa (alternate view) Sieve Brief in White Boa $38
4.6
Rated 4.6 out of 5 stars
Based on 4,229 reviews
Write a Review (Opens in a new window)
4,229 reviews
  • Liza
    Verified Buyer
    Size Purchased 2
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32B
    4 minutes ago
    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?
  • Danielle E.
    Verified Buyer
    Size Purchased 4
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 38C
    1 hour ago
    Size Purchased 4
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 38C
    Sieve Non-Wire Bra in Glacier
    Reviewing
    Sieve Non-Wire Bra in Glacier
    Rated 5 out of 5 stars
    Love this style

    Comfortable and cute! I have the sieve in black as well.

    Was this helpful?
  • Deborah R.
    Verified Buyer
    Size Purchased 2
    How it Fits True to Size
    Age Range 65+
    Bra Size 34C
    13 hours ago
    Size Purchased 2
    How it Fits True to Size
    Age Range 65+
    Bra Size 34C
    Sieve Non-Wire Bra in White
    Reviewing
    Sieve Non-Wire Bra in White
    Rated 5 out of 5 stars
    Love them

    Love them

    Was this helpful?
  • Laura G.
    Verified Buyer
    Size Purchased 1
    How it Fits True to Size
    Age Range 35 - 44
    Bra Size 34B
    19 hours ago
    Size Purchased 1
    How it Fits True to Size
    Age Range 35 - 44
    Bra Size 34B
    Sieve Non-Wire Bra in Slate
    Reviewing
    Sieve Non-Wire Bra in Slate
    Rated 4 out of 5 stars
    Minimalist comfort

    This bra is surprisingly supportive for what it's made of. It was comfortable during a flight and several hours of dance classes. I'm looking forward to seeing how it breaks in over time.

    Was this helpful?
  • Teresa U.
    Verified Buyer
    Size Purchased 1+
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32DD/E
    Yesterday
    Size Purchased 1+
    How it Fits True to Size
    Age Range 25 - 34
    Bra Size 32DD/E
    Sieve Non-Wire Bra in Peach
    Reviewing
    Sieve Non-Wire Bra in Peach
    Rated 5 out of 5 stars
    Super comfortable

    This bra is super comfortable. I’m writing this review to get 10 percent off and buy two more!

    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 White Boa for sizer

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