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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
1744 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 1744 reviews
  • 5 Stars
    1341 Reviews
  • 4 Stars
    188 Reviews
  • 3 Stars
    111 Reviews
  • 2 Stars
    64 Reviews
  • 1 Star
    40 Reviews
90% of reviewers would recommend this product to a friend
1744 Reviews
Reviewed by A
Verified Buyer
Sieve Non-Wire Bra in Buff + Black
Reviewing
Sieve Non-Wire Bra in Buff + Black
I don't recommend this product
Rated 3 out of 5
Review posted

Fine

I like the look of this bra but for the price, I wanted it to be the most comfortable bra ever. And it wasn’t. The fabric feels slightly unpleasant.

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Reviewed by Katie
Verified Buyer
Sieve Non-Wire Bra in Slate
Reviewing
Sieve Non-Wire Bra in Slate
I don't recommend this product
Rated 3 out of 5
Review posted

It was okay

I was excited for this bra but I found the material to be kind of itchy. I liked the fit but it isn't going to be my new go to bra.

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Reviewed by Blair A.
Verified Buyer
Sieve Non-Wire Bra in Buff
Reviewing
Sieve Non-Wire Bra in Buff
I recommend this product
Rated 5 out of 5
Review posted

Best Bra Ever in a Million years

I’m the most difficult to fit into a bra, this is heaven with straps, so soft, so lightweight and my husband loved them as well. But every bra in my drawer is going to Goodwill and getting replaced with these in every color.

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Non-Wire Bra Sizing

Size Chart

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

@negativeunderwear