Your cart
Free US shipping on orders over $100. Easy returns.
International Shipping now available!
Give $20, get $20. Win win.
[Vitoria 36DD]
[Vitoria 36DD]
[Vitoria 36DD]
Shown here with our Sieve Thong in Slate [Paula 32C]
Honeycomb micromesh is surprisingly supportive [Paula 32C]
Our signature micromesh is sexy yet comfortable
flat
  • Thumbnail image #1 of Sieve Demi Bra in Slate [Vitoria 36DD]
  • Thumbnail image #2 of Sieve Demi Bra in Slate [Vitoria 36DD]
  • Thumbnail image #3 of Sieve Demi Bra in Slate [Vitoria 36DD]
  • Thumbnail image #4 of Sieve Demi Bra in Slate [Paula 32C]
  • Thumbnail image #5 of Sieve Demi Bra in Slate [Paula 32C]
  • Thumbnail image #6 of Sieve Demi Bra in Slate
[Vitoria 36DD] [Vitoria 36DD] [Vitoria 36DD] Shown here with our Sieve Thong in Slate [Paula 32C] Honeycomb micromesh is surprisingly supportive [Paula 32C] Our signature micromesh is sexy yet comfortable

Sieve Demi Bra

4.7
Rated 4.7 out of 5 stars
978 Reviews

None of the padding. All the support.


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

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)
  • Steely blue-grey tone
  • Hand wash in cold water, dry flat

FAQ

  • 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

Pair it with ->

Sieve Thong in Slate Sieve Thong in Slate (alternate view) Sieve Thong in Slate $32
Sieve High-Waist Brief in Slate Sieve High-Waist Brief in Slate (alternate view) Sieve High-Waist Brief in Slate $45
Sieve Brief in Slate Sieve Brief in Slate (alternate view) Sieve Brief in Slate $35
Sieve String Thong in Slate Sieve String Thong in Slate (alternate view) Sieve String Thong in Slate $30
4.7
Rated 4.7 out of 5 stars
Based on 978 reviews
Write a Review (Opens in a new window)
978 reviews
  • Kristyn A R.
    Verified Buyer
    Size Purchased 38D
    How it Fits True to Size
    Age Range 35 - 44
    3 minutes ago
    Size Purchased 38D
    How it Fits True to Size
    Age Range 35 - 44
    Sieve Demi Bra in Buff
    Reviewing
    Sieve Demi Bra in Buff
    Rated 5 out of 5 stars
    Amazing fit

    Fit like a glove!

    Was this helpful?
  • Julia P.
    Verified Buyer
    Size Purchased 36DD
    How it Fits True to Size
    Age Range 25 - 34
    10 hours ago
    Size Purchased 36DD
    How it Fits True to Size
    Age Range 25 - 34
    Sieve Demi Bra in Black
    Reviewing
    Sieve Demi Bra in Black
    Rated 4 out of 5 stars
    LOVE IT!

    I would give it five stars if the straps and outline material of the bra was a little bit softer. Other than that the fit is perfect and super comfy! Purchased a 36G!

    Was this helpful?
  • Patricia G.
    Verified Buyer
    Size Purchased 36DD
    How it Fits True to Size
    Age Range 65+
    2 days ago
    Size Purchased 36DD
    How it Fits True to Size
    Age Range 65+
    Sieve Demi Bra in Black
    Reviewing
    Sieve Demi Bra in Black
    Rated 5 out of 5 stars
    Once again

    I have ordered this bra three times, in three colors. Why? It’s the fit. The shape. The forget-ability in the sense it’s not using up your attention to wear it.

    Was this helpful?
  • Patricia G.
    Verified Buyer
    Size Purchased 36DD
    How it Fits True to Size
    Age Range 65+
    2 days ago
    Size Purchased 36DD
    How it Fits True to Size
    Age Range 65+
    Sieve Demi Bra in Peach
    Reviewing
    Sieve Demi Bra in Peach
    Rated 5 out of 5 stars
    As great as ever

    I like it in peach just as much as I’ve enjoyed it in other colors! Same great qualities I’m looking for.

    Was this helpful?
  • Debbie A.
    Verified Buyer
    Size Purchased 36DD
    How it Fits True to Size
    Age Range 55 - 64
    4 days ago
    Size Purchased 36DD
    How it Fits True to Size
    Age Range 55 - 64
    Sieve Demi Bra in Black
    Reviewing
    Sieve Demi Bra in Black
    Rated 5 out of 5 stars
    Demi bra

    High quality

    Was this helpful?
Reviews LoadedReviews Added
Detail view of Sieve Demi Bra in Slate for sizer

@negativeunderwear