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MK, shown here, is a size 34D bra, wearing a size 3 [MK 34D]
Sieve Non-Wire Bra in Slate
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
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Sieve Non-Wire Bra in Slate

Rated 4.6 out of 5
1390 Reviews
Buy any 3 for $165

Our best selling bra for a reason.


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

Free shipping over $75. 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
average rating 4.6 out of 5
Based on 1390 reviews
  • 5 Stars
    1083 Reviews
  • 4 Stars
    149 Reviews
  • 3 Stars
    85 Reviews
  • 2 Stars
    44 Reviews
  • 1 Star
    29 Reviews
91% of reviewers would recommend this product to a friend
Overall
Rated -1 on a scale of minus 2 to 2, where minus 2 is Loved it, 0 is Meh and 2 is Hated it
Quality
Rated 4 out of 5
Comfort
Rated 4 out of 5
1390 Reviews
Reviewed by Kiah Z.
Verified Buyer
I recommend this product
Size Purchased
4
How it Fits
True to Size
Age
25 - 34
Bra Size
36D
Rated 5 out of 5
Review posted

Fully Obsessed

I'm a 36D and have always struggled to find flattering, high quality, bralettes for my size. Not only is the color Haze gorgeous on any skin tone, this bra is beautiful, sexy and comfortable. I would replace all my bras with Negative bras if i could...one day!

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Overall
Rated -2 on a scale of minus 2 to 2, where minus 2 is Loved it, 0 is Meh and 2 is Hated it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Cynthia B.
Verified Buyer
I don't recommend this product
Size Purchased
4
How it Fits
Runs Small
Age
65+
Bra Size
Other
Rated 3 out of 5
Review posted

A size 5 is not much bigger than an xl I ordered previously.

I love the look and comfort of the bra but you don’t make one big enough for me. I had to add an extension to the back of the 5 to be able to wear it. A 44 or 46 back would be perfect!

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Overall
Rated 0 on a scale of minus 2 to 2, where minus 2 is Loved it, 0 is Meh and 2 is Hated it
Quality
Rated 4 out of 5
Comfort
Rated 3 out of 5
Was this helpful?
Reviewed by Ellery B.
Verified Buyer
I recommend this product
Size Purchased
2
How it Fits
True to Size
Age
25 - 34
Bra Size
34C
Rated 5 out of 5
Review posted

Amazing

Truly never buying a different bra

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Overall
Rated -2 on a scale of minus 2 to 2, where minus 2 is Loved it, 0 is Meh and 2 is Hated it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?