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[Ksenia 1]
[Ksenia 1]
[Ksenia 1]
[Ksenia 1]
[Vitoria 3+]
[Vitoria 3+]
[Vitoria 3+]
  • Thumbnail image #1 of Sieve Non-Wire Bra in Navy [Ksenia 1]
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Product photo #1 of Sieve Non-Wire Bra in Navy [Ksenia 1] Product photo #2 of Sieve Non-Wire Bra in Navy [Ksenia 1] Product photo #3 of Sieve Non-Wire Bra in Navy [Ksenia 1] Product photo #4 of Sieve Non-Wire Bra in Navy [Ksenia 1] Product photo #5 of Sieve Non-Wire Bra in Navy [Vitoria 3+] Product photo #6 of Sieve Non-Wire Bra in Navy [Vitoria 3+] Product photo #7 of Sieve Non-Wire Bra in Navy [Vitoria 3+]

Sieve Non-Wire Bra

Rated 4.5 out of 5
Based on 2501 reviews

Our best selling bra for a reason.


Great shape and surprising support - no pad or wire included.
SALESALE

Free shipping over $100. Easy Returns.

Fit

  • Size Chart
  • Use this as a guide. Preference is a huge factor — the benefit of a non-wire is they're super flexible, so you will likely fit in more than one size. Like a looser band? Size up! Like less coverage? Size down! Still unsure? Try two sizes :)
  • *Note, our Sieve Non-Wire doesn't have the same wide band as our Silky. As a result, it'll likely feel snug the first few wears. Don't fret — it'll stretch a bit with time.

Fabric + Care

  • Size Chart
  • Made from a sheer Belgian power micromesh — nipples are visible
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • Hand wash in cold water, dry flat 

FAQ

  • Price slashed, Annual Sale items with a red SALE tag are final sale. Full priced items and packs purchased with the 15% off discount are eligible for refund, credit or exchange. 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

Pair it with ->

Sieve Triangle Bra in Navy Sieve Triangle Bra in Navy Sieve Triangle Bra in Navy $65
Sieve Thong in Navy Sieve Thong in Navy Sieve Thong in Navy $32
Sieve High-Waist Brief in Navy Sieve High-Waist Brief in Navy Sieve High-Waist Brief in Navy $45
Write a Review
average rating 4.5 out of 5
Based on 2501 reviews
  • 5 Stars
    1910 Reviews
  • 4 Stars
    273 Reviews
  • 3 Stars
    162 Reviews
  • 2 Stars
    95 Reviews
  • 1 Star
    61 Reviews
90% of reviewers would recommend this product to a friend
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
2501 Reviews
Reviewed by Lauren W.
Review posted
Sieve Non-Wire Bra in Haze
Reviewing
Sieve Non-Wire Bra in Haze
I recommend this product
Rated 5 out of 5
Size Purchased
4
How it Fits
True to Size
Age Range
35 - 44
Bra Size
38DD/E

So many things

I love this bra!! I am usually a DD-DDD and have frequent back and neck pain from bad bras. I have been looking for something that is a good cross of comfort, support, and sexiness. This bra is it. It is soooo comfortable, but makes my boobs look incredible and looks good under any shirt. I feel free but supported. Occasionally it will show my nipple a bit, but the sieve fabric does a great job at keeping it subtle. It doesn’t make me uncomfortable at all at work. Highly recommend!

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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 cameron k.
Verified Buyer
Review posted
Sieve Non-Wire Bra in Navy
Reviewing
Sieve Non-Wire Bra in Navy
I recommend this product
Rated 5 out of 5
Size Purchased
2
How it Fits
True to Size
Age Range
25 - 34
Bra Size
32DD/E

Sieve non wire bra

I ordered the navy set and I knew I would love them and of course I do. I just ordered another navy set too. They're comfy as the sieve wireless and thongs usually are. The navy is also a nice alternative to the black. Get these you will not regret it.

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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 Heidi H.
Verified Buyer
Review posted
Sieve Non-Wire Bra in Navy
Reviewing
Sieve Non-Wire Bra in Navy
I recommend this product
Rated 5 out of 5
Size Purchased
1
How it Fits
True to Size
Age Range
45 - 54
Bra Size
30B

Beautiful bra

Beautiful navy ( love this color!) feels like air but offers support. Sexy and functional- why did I wait so long? My new favorite negative underwear 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.

Q’s about sizing or fit? Email us at hello@negativeunderwear.com

@negativeunderwear