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[MK 32C]
Honeycomb mesh creates a flattering shape and support [MK 32C]
Hook & eye closure with adjustable straps for sizing variation [MK 32C]
[MK 32C]
  • [MK 32C]
  • Honeycomb mesh creates a flattering shape and support [MK 32C]
  • Hook & eye closure with adjustable straps for sizing variation [MK 32C]
  • [MK 32C]
Sieve Non-Wire Bra in Black Sieve Non-Wire Bra in Black Sieve Non-Wire Bra in Black Sieve Non-Wire Bra in Black

Sieve Non-Wire Bra in Black

Rated 4.6 out of 5
958 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
  • 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.
  • 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 958 reviews
  • 5 Stars
    743 Reviews
  • 4 Stars
    113 Reviews
  • 3 Stars
    60 Reviews
  • 2 Stars
    30 Reviews
  • 1 Star
    12 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
958 Reviews
Reviewed by Ali
Verified Buyer
I recommend this product
Size Purchased
2
How it Fits
True to Size
Age
25 - 34
Bra Size
36A
Rated 5 out of 5
Review posted

Great!

I’ve always been weary about unlined, non-padded bras due to my smaller bust. No longer the case! Obsessed with my black Sieve bra. Getting two more. They are very flattering!

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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 Ashley Y.
Verified Buyer
I recommend this product
Size Purchased
4
How it Fits
True to Size
Age
25 - 34
Bra Size
36C
Rated 5 out of 5
Review posted

LOVE

This is probably the most comfortable bra I’ve ever worn! The only negative I can think of (and it’s no big deal since it’s under clothes) is that sweat shows up on it instantly and doesn’t go away until it’s washed.

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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 4 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Libby S.
Verified Buyer
I recommend this product
Size Purchased
2
How it Fits
True to Size
Age
35 - 44
Bra Size
36C
Rated 5 out of 5
Review posted

Held strong and comfortable all day!

Bra held my girls in place all day and is very comfortable. Also, it gives me a beautiful silhouette :)

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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?