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[Ksenia 1]
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Sieve Non-Wire Bra in Black
[Ksenia 1]
[Hannah 3+]
[Hannah 3+]
Sieve Non-Wire Bra in Black
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Buy any 2, save $7. Buy any 3, save $15
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Sieve Non-Wire Bra

Rated 4.6 out of 5
Based on 3584 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. 
NEW

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

  • 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 +
Write a Review
average rating 4.6 out of 5
Based on 3584 reviews
  • 5 Stars
    2766 Reviews
  • 4 Stars
    400 Reviews
  • 3 Stars
    212 Reviews
  • 2 Stars
    119 Reviews
  • 1 Star
    87 Reviews
91% of reviewers would recommend this product to a friend
Overall
Rated 0 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 4 out of 5
Comfort
Rated 4 out of 5
3584 Reviews
Reviewed by Rennie P.
Verified Buyer
Review posted
Sieve Non-Wire Bra in Buff
Reviewing
Sieve Non-Wire Bra in Buff
I recommend this product
Rated 5 out of 5
Size Purchased
1+
How it Fits
True to Size
Age Range
55 - 64
Bra Size
32DD/E

The Best non-wire bra!

Bra's never fit me well and I love the Sieve bra. It looks great on and it's comfortable. The plus size is a great option for additional coverage. Customer service was great for advice on sizing and exchanging was surprisingly fast.

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Overall
Rated 2 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Anna A.
Verified Buyer
Review posted
Sieve Non-Wire Bra in Buff + Black
Reviewing
Sieve Non-Wire Bra in Buff + Black
I recommend this product
Rated 5 out of 5
Size Purchased
2+
How it Fits
True to Size
Age Range
18 - 24
Bra Size
34DD/E

Beautiful and comfy bra

Slightly supportive, beautiful, and breathable. I’d consider getting another.

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Overall
Rated 1 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 4 out of 5
Comfort
Rated 4 out of 5
Was this helpful?
Reviewed by Thomas B.
Verified Buyer
Review posted
Sieve Non-Wire Bra in White
Reviewing
Sieve Non-Wire Bra in White
I recommend this product
Rated 5 out of 5
Size Purchased
4
How it Fits
True to Size
Age Range
45 - 54
Bra Size
36D

perfect comfortable bra

No wires! Great all day bra.

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Overall
Rated 2 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?

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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