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[Adelina 32B]
[Adelina 32B]
[Adelina 32B]
[Hannah 36DD]
[Hannah 36DD]
Power mesh is the right amount of sheer
Thumbnail image #1 of Sieve Demi Bra in Buff [Adelina 32B]
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[Adelina 32B]
[Adelina 32B]
[Adelina 32B]
[Hannah 36DD]
[Hannah 36DD]
Power mesh is the right amount of sheer

Sieve Demi Bra

4.7
Rated 4.7 out of 5 stars
1,136 Reviews

None of the padding. All the support.


Airy light and surprisingly strong — it’s not impossible, we made it.
BlackSlateBuffPeachCoral

We’d love to know what size you want us to make next - email us so we can add your info to our list!

Free U.S. shipping on orders over $100. Easy returns.

Fit

  • Made from a sheer Belgian power micromesh — nipples are visible
  • Underwire bra with max comfort
  • Velvety plush elastic underband
  • Heat transferred care label = no itchy tags

Fabric + Care

  • Sheer Belgian power micromesh is surprisingly supportive
  • Unpadded and unlined — nipples can show depending on the person or the shirt
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • A caramel-y sunrise affogato desert sands tone
  • Hand wash in cold water, dry flat

FAQ

  • Price-slashed, Annual Sale items with a red SALE tag are direct size exchange only (no refunds). Full-priced items purchased with the 20% off discount are eligible for refund, credit or exchange. Click here for more info on our Sale policies.
  • All full-priced, unworn items, with tags attached and in their original packaging are eligible for return or exchange within 30 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

Looks good with ->

Sieve High-Waist Brief in Buff Sieve High-Waist Brief in Buff (alternate view) Sieve High-Waist Brief in Buff $45 +
Sieve Thong in Buff Sieve Thong in Buff (alternate view) Sieve Thong in Buff $32 +
Sieve String Thong in Buff Sieve String Thong in Buff (alternate view) Sieve String Thong in Buff $30
Sieve Trim High Thong in Buff Boa Sieve Trim High Thong in Buff Boa (alternate view) Sieve Trim High Thong in Buff Boa $40
4.7
Rated 4.7 out of 5 stars
Based on 1,136 reviews
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1,136 reviews
  • MaryLynn H.
    Verified Buyer
    Size Purchased 36C
    How it Fits True to Size
    Age Range 65+
    18 minutes ago
    Size Purchased 36C
    How it Fits True to Size
    Age Range 65+
    Sieve Demi Bra in Coral
    Reviewing
    Sieve Demi Bra in Coral
    Rated 5 out of 5 stars
    Wired

    Haven’t worn underwires in several years but this one is great!

    Was this helpful?
  • Barbara Anne B.
    Verified Buyer
    Size Purchased 32D
    How it Fits True to Size
    Age Range 45 - 54
    20 hours ago
    Size Purchased 32D
    How it Fits True to Size
    Age Range 45 - 54
    Sieve Demi Bra in Slate
    Reviewing
    Sieve Demi Bra in Slate
    Rated 5 out of 5 stars
    Love the color and support!

    This is my second Sieve demi bra and I'm obsessed! They feel great and are very supportive and best of all, no padding!!

    Was this helpful?
  • Lynnae H.
    Verified Buyer
    Size Purchased 34DD
    How it Fits True to Size
    Age Range 45 - 54
    23 hours ago
    Size Purchased 34DD
    How it Fits True to Size
    Age Range 45 - 54
    Sieve Demi Bra in Peach
    Reviewing
    Sieve Demi Bra in Peach
    Rated 5 out of 5 stars
    Perfection

    Perfect coverage. The mesh fabric helps with a form fit. No una-boob.

    Will be my new go-to bra.

    Was this helpful?
  • Grace W.
    Verified Buyer
    Size Purchased 36D
    How it Fits True to Size
    Age Range 25 - 34
    Yesterday
    Size Purchased 36D
    How it Fits True to Size
    Age Range 25 - 34
    Sieve Demi Bra in Black
    Reviewing
    Sieve Demi Bra in Black
    Rated 5 out of 5 stars
    awesome !!

    instagram made me buy it and i don’t regret it

    Was this helpful?
  • Bev A.
    Verified Buyer
    Size Purchased 36B
    How it Fits A Little Big
    Age Range 55 - 64
    Yesterday
    Size Purchased 36B
    How it Fits A Little Big
    Age Range 55 - 64
    Sieve Demi Bra in Buff
    Reviewing
    Sieve Demi Bra in Buff
    Rated 3 out of 5 stars
    Not right for me

    The upper part of the cop was a little bit loose, so I exchanged it for another balconette. Customer Service is the bomb… So easy to work with!

    Was this helpful?
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Detail view of Sieve Demi Bra in Buff for sizer

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