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Sieve Non-Wire Bra

Rated 4.5 out of 5
Based on 2521 reviews

Our best selling bra for a reason.


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

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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

Buy the set ->

Sieve Non-Wire Bra in Black Sieve Non-Wire Bra in Black (alternate view)
Sieve Non-Wire Bra in Black
Sieve Thong in Black Sieve Thong in Black (alternate view)
Sieve Thong in Black
Write a Review
average rating 4.5 out of 5
Based on 2521 reviews
  • 5 Stars
    1926 Reviews
  • 4 Stars
    274 Reviews
  • 3 Stars
    164 Reviews
  • 2 Stars
    95 Reviews
  • 1 Star
    62 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
2521 Reviews
Reviewed by Isabelle T.
Verified Buyer
Review posted
Sieve Non-Wire Bra in Slate
Reviewing
Sieve Non-Wire Bra in Slate
I recommend this product
Rated 5 out of 5
Size Purchased
5
How it Fits
A Little Small
Age Range
18 - 24
Bra Size
36DD/E

best bra ever

I have bigger boobs and this is literally the only bralette that has ever fit right. It's perfect if you're looking for something less constrictive than an underwire but just enough to shape underneath a shirt.

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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 Kim W.
Verified Buyer
Review posted
Sieve Non-Wire Bra in Black and in Buff (2 Pack)
Reviewing
Sieve Non-Wire Bra in Black and in Buff (2 Pack)
I recommend this product
Rated 5 out of 5
Size Purchased
M
How it Fits
True to Size
Age Range
55 - 64
Bra Size
36C

Very Comfortable and what I was hoping for

I wanted an unlined bra that offered some lift without the padding. This bra did the trick. The fabric is nice and comfy too. I will order more now that I know I like them!

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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 Kristin C.
Verified Buyer
Review posted
Sieve Non-Wire Bra in Slate
Reviewing
Sieve Non-Wire Bra in Slate
I recommend this product
Rated 5 out of 5
Size Purchased
3
How it Fits
True to Size
Age Range
45 - 54
Bra Size
36B

Best bra ever

Not only is this bra the most comfortable bra I have ever tried, it is sexy as hell. All around a winner

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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

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