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MK, shown here, is a size 34D bra, wearing a size 3 [MK 34D]
Pairs perfectly with our Sieve High-Waist Brief in Slate [MK 34D]
4-row hook & eye closure allows for a more custom fit [MK 34D]
[MK 34D]
Sieve Non-Wire Bra in Slate
Sieve Non-Wire Bra in Slate
[Sabrina 2+]
[Sabrina 2+]
[Sabrina 2+]
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  • Thumbnail image #7 of Sieve Non-Wire Bra in Slate [Sabrina 2+]
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  • Thumbnail image #9 of Sieve Non-Wire Bra in Slate [Sabrina 2+]
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Product photo #1 of Sieve Non-Wire Bra in Slate [MK 34D] Product photo #2 of Sieve Non-Wire Bra in Slate [MK 34D] Product photo #3 of Sieve Non-Wire Bra in Slate [MK 34D] Product photo #4 of Sieve Non-Wire Bra in Slate [MK 34D] Product photo #5 of Sieve Non-Wire Bra in Slate Product photo #6 of Sieve Non-Wire Bra in Slate Product photo #7 of Sieve Non-Wire Bra in Slate [Sabrina 2+] Product photo #8 of Sieve Non-Wire Bra in Slate [Sabrina 2+] Product photo #9 of Sieve Non-Wire Bra in Slate [Sabrina 2+]

Sieve Non-Wire Bra

Rated 4.6 out of 5
Based on 1880 reviews

Our best selling bra for a reason.


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

Buy more and save $

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
  • Steely blue-grey tone
  • 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

Pair it with ->

Sieve Thong in Slate Sieve Thong in Slate Sieve Thong in Slate $30 +
Rated 4.7 out of 5
Based on 166 reviews
Silky Thong in Slate Silky Thong in Slate Silky Thong in Slate $30 +
Rated 4.7 out of 5
Based on 98 reviews
Silky Brief in Slate Silky Brief in Slate Silky Brief in Slate $35 +
Rated 4.7 out of 5
Based on 122 reviews
Sieve Brief in Slate Sieve Brief in Slate Sieve Brief in Slate $35 +
Rated 4.7 out of 5
Based on 42 reviews
Write a Review
average rating 4.6 out of 5
Based on 1880 reviews
  • 5 Stars
    1442 Reviews
  • 4 Stars
    200 Reviews
  • 3 Stars
    121 Reviews
  • 2 Stars
    72 Reviews
  • 1 Star
    45 Reviews
90% of reviewers would recommend this product to a friend
1880 Reviews
Reviewed by Sierra Lyn S.
Verified Buyer
Sieve Non-Wire Bra in Slate
Reviewing
Sieve Non-Wire Bra in Slate
I recommend this product
Rated 5 out of 5
Review posted

Super sexy

Great fit! Looks awesome! I love it! Buying Coral and brown now!

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Reviewed by Bonnie
Verified Buyer
Sieve Non-Wire Bra in Black
Reviewing
Sieve Non-Wire Bra in Black
I recommend this product
Rated 5 out of 5
Review posted

Great Multi-use Bra!

This is my new favorite bra! It makes me look and feel super sexy wearing it. It's so soft and comfortable and its great for tshirts to tanks to dresses.

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

Consistently amazing

Always chic and always beyond comfortable.

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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