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[MK 1]
[MK 1]
[MK 1]
[MK 1]
[Hannah 4+]
[Hannah 4+]
[Hannah 4+]
[Hannah 4+]
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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
1640 Reviews

Our best selling bra for a reason.


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

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 1640 reviews
  • 5 Stars
    1258 Reviews
  • 4 Stars
    180 Reviews
  • 3 Stars
    104 Reviews
  • 2 Stars
    58 Reviews
  • 1 Star
    40 Reviews
90% 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
1640 Reviews
Reviewed by Erika B.
Verified Buyer
Sieve Non-Wire Bra in Black
Reviewing
Sieve Non-Wire Bra in Black
I recommend this product
Size Purchased
3
How it Fits
True to Size
Age
25 - 34
Bra Size
34DD/E
Rated 5 out of 5
Review posted

I don’t want t to wear any other bra

I hate wearing bras because they feel so constricted but this one is the only bra I can tolerate! Love it! I want more!

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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 Erika B.
Verified Buyer
Sieve Non-Wire Bra in Slate
Reviewing
Sieve Non-Wire Bra in Slate
I recommend this product
Size Purchased
3
How it Fits
True to Size
Age
25 - 34
Bra Size
34DD/E
Rated 5 out of 5
Review posted

Never wearing underwire ever again!

So comfy and supportive!!

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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 Liz A.
Verified Buyer
Sieve Non-Wire Bra in Peach
Reviewing
Sieve Non-Wire Bra in Peach
I recommend this product
Size Purchased
1
How it Fits
Runs Small
Age
35 - 44
Bra Size
32B
Rated 5 out of 5
Review posted

Wonderful bra!

Super happy, and now about to buy more. Comfortable, washes well, good price

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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
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Non-Wire Bra Sizing

Size Chart

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

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