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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
  • 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
Sieve Non-Wire Bra in Slate Sieve Non-Wire Bra in Slate Sieve Non-Wire Bra in Slate Sieve Non-Wire Bra in Slate Sieve Non-Wire Bra in Slate Sieve Non-Wire Bra in Slate

Sieve Non-Wire Bra in Slate

Rated 4.6 out of 5
1232 Reviews
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 1232 reviews
  • 5 Stars
    963 Reviews
  • 4 Stars
    135 Reviews
  • 3 Stars
    74 Reviews
  • 2 Stars
    38 Reviews
  • 1 Star
    22 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
1232 Reviews
Reviewed by kourtney c.
Verified Buyer
I recommend this product
Size Purchased
4
How it Fits
True to Size
Age
18 - 24
Bra Size
38DD/E
Rated 5 out of 5
Review posted

amazing

best bra i’ve worn in a long time. the quality is fantastic for something so thin. the bra clasp is great too!

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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 Marie-Jose E.
Verified Buyer
I recommend this product
Size Purchased
2
How it Fits
True to Size
Age
35 - 44
Bra Size
34C
Rated 5 out of 5
Review posted

Comfy chic bra

Love love love this style, no wires in the way, made of high end quality fabric. A bra in a very classic design but most of all comfortable. You forget you're wearing a bra ( : I got 2 black ones and 1 buff.

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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 Melinda M.
Verified Buyer
I recommend this product
Size Purchased
1
How it Fits
True to Size
Age
55 - 64
Bra Size
34A
Rated 5 out of 5
Review posted

Great website..

Love this bra! Comfortable, supportive and very sexy!

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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 1 out of 5
Comfort
Rated 1 out of 5
Was this helpful?