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Product photo #1 of Sieve Non-Wire Bra in Black [MK 1] Product photo #2 of Sieve Non-Wire Bra in Black [MK 1] Product photo #3 of Sieve Non-Wire Bra in Black [MK 1] Product photo #4 of Sieve Non-Wire Bra in Black [MK 1] Product photo #5 of Sieve Non-Wire Bra in Black [Hannah 4+] Product photo #6 of Sieve Non-Wire Bra in Black [Hannah 4+] Product photo #7 of Sieve Non-Wire Bra in Black [Hannah 4+] Product photo #8 of Sieve Non-Wire Bra in Black [Hannah 4+]

Sieve Non-Wire Bra

Rated 4.6 out of 5
Based on 2136 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

  • All unworn items, with tags attached and in their original packaging are eligible for return or exchange within 21 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 4.6 out of 5
Based on 2136 reviews
  • 5 Stars
    1629 Reviews
  • 4 Stars
    240 Reviews
  • 3 Stars
    135 Reviews
  • 2 Stars
    83 Reviews
  • 1 Star
    49 Reviews
90% of reviewers would recommend this product to a friend
2136 Reviews
Reviewed by Rachel W.
Verified Buyer
Sieve Non-Wire Bra in Black
Reviewing
Sieve Non-Wire Bra in Black
I don't recommend this product
Rated 3 out of 5
Review posted

Not as perfect as I had hoped

I bought this bra after reading all of the hype. The first week I truly did love it, however after a few wears I’ve noticed the band has folded over and it makes it very uncomfortable to wear. Even after washing it, the folded band is still there. The rest of the bra is wonderful, but the band is just not for me.

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Reviewed by Cate M.
Verified Buyer
Sieve Non-Wire Bra in Peach
Reviewing
Sieve Non-Wire Bra in Peach
I recommend this product
Rated 4 out of 5
Review posted

Super!!

I love the looks and the fit and the feel, except the band, which itches.

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Reviewed by patricia e.
Verified Buyer
Sieve Non-Wire Bra in Haze
Reviewing
Sieve Non-Wire Bra in Haze
I recommend this product
Rated 5 out of 5
Review posted

Fabulous!

Best bra I have found so far that does not feel like a harness!

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Non-Wire Bra Sizing

Non-Wire Bra Sizing Size Chart

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

@negativeunderwear