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Belgian micromesh provides more support than your average wireless
4-row hook & eyes and adjustable straps allow for a more flexible fit
Sieve Non-Wire Bra in Buff
Jackie is a size 32D bra, wearing our size 2 non-wire

Sieve Non-Wire Bra in Buff

Rated 4.8 out of 5
48 Reviews
Semi-covered, in the buff. If you're into double entendre, this one's for you.
  • We've updated our fit! Double check our size chart
  • Subtly sheer Belgian honeycomb micromesh
  • More shaping and support than you'd expect from a wireless
  • Silky no-slip straps softer than you've ever felt
  • Heat transferred care label = no itchy tags
  • Seamless under tees
  • Size Breakdown...
  • 0 fits bra sizes: 30A, 30B, 30C, 32A
  • 1 fits bra sizes: 30D, 32B, 32C, 34A, 34B
  • 2 fits bra sizes: 30DD, 32D, 32DD, 34C, 34D, 36A
  • 3 fits bra sizes: 34DD, 36B, 36C, 36D, 38B
  • 4 fits bra sizes: 36DD, 38C, 38D, 38DD
  • Questions? Talk to us: hello@negativeunderwear.com
Orders over $100 ship for free. 
All unworn items, with tags attached and in their original packaging are eligible for return or direct 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!

Anything else? Email us at hello@negativeunderwear.com

    $55
    Semi-covered, in the buff. If you're into double entendre, this one's for you.
    • We've updated our fit! Double check our size chart
    • Subtly sheer Belgian honeycomb micromesh
    • More shaping and support than you'd expect from a wireless
    • Silky no-slip straps softer than you've ever felt
    • Heat transferred care label = no itchy tags
    • Seamless under tees
    • Size Breakdown...
    • 0 fits bra sizes: 30A, 30B, 30C, 32A
    • 1 fits bra sizes: 30D, 32B, 32C, 34A, 34B
    • 2 fits bra sizes: 30DD, 32D, 32DD, 34C, 34D, 36A
    • 3 fits bra sizes: 34DD, 36B, 36C, 36D, 38B
    • 4 fits bra sizes: 36DD, 38C, 38D, 38DD
    • Questions? Talk to us: hello@negativeunderwear.com
    Orders over $100 ship for free. 
    All unworn items, with tags attached and in their original packaging are eligible for return or direct 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!

    Anything else? Email us at hello@negativeunderwear.com

      Pair it with ->

      Silky, smooth, luxurious, subtle - aka Negative in a nutshell Anastasia is 5'9", jean size 26, wearing a size S brief
      Silky Brief in Buff $35 +
      Rated 4.7 out of 5
      6 Reviews
      Looks soft and luxurious? It is IRL, too. Worn with our Silky Non-Wire in Buff - it's practically Yeezy season 4
      Silky Thong in Buff $28 +
      Rated 5.0 out of 5
      1 Review
      Only a few left!
      Paula is 5'10", dress size 2, jeans size 25, wearing size XS Diagonal princess seams + drop-needle stitch give textural intrigue
      Whipped Boy Short in Buff $40
      Rated 5.0 out of 5
      2 Reviews
      Write a Review
      average rating 4.8 out of 5
      Based on 48 reviews
      • 5 Stars
        40 Reviews
      • 4 Stars
        4 Reviews
      • 3 Stars
        4 Reviews
      • 2 Stars
        0 Reviews
      • 1 Star
        0 Reviews
      96% 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
      48 Reviews
      Reviewed by Colleen C.
      Verified Buyer
      I recommend this product
      Size Purchased
      L
      How it Fits
      True to Size
      Age
      35 - 44
      Bra Size
      40B
      Rated 5 out of 5
      Review posted

      Feels good and very sexy

      Fits well. I feel supported without having an underwire. I have a B & C cup, I'm wide around and got the Large. I use an extender and am pleased with the fit.

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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 4 out of 5
      Was this helpful?
      Reviewed by Mimi A.
      Verified Buyer
      I recommend this product
      Size Purchased
      38D
      How it Fits
      Runs Small
      Age
      45 - 54
      Bra Size
      40D
      Rated 4 out of 5
      Review posted

      sizing

      Beautiful product, love it, but sizing is a little small.

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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 Dimitra
      Verified Buyer
      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

      Easy

      The size fit guide was super easy to use and was spot on. I am a little larger chested and I'm really enjoying this non-wire bra. It's fully support and 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 5 out of 5
      Comfort
      Rated 5 out of 5
      Was this helpful?
      Reviewed by Mme L.
      Verified Buyer
      I recommend this product
      Size Purchased
      1
      How it Fits
      True to Size
      Age
      45 - 54
      Bra Size
      32C
      Rated 5 out of 5
      Review posted

      All time favorite

      The Sieve non-wire bra is now my all time favorite! It’s like wearing sexy lingerie that is so comfortable & functional, you never want to take it off...

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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 Abbey S.
      Verified Buyer
      I recommend this product
      Size Purchased
      3
      How it Fits
      True to Size
      Age
      18 - 24
      Bra Size
      36D
      Rated 5 out of 5
      Review posted

      The bra I have been searching for!!!

      I have been searching for the perfect bra--no underwear, no padding, supportive but still has that bralette feel--and this bra is everything I have been searching for and more! I'll definitely be ordering more colors in this bra and I can't wait to try other Negative products. Highly, highly, highly recommend!!

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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?
      @negativeunderwear

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      Size Guide

      What size am I in Negative?

      If you already wear a certain bra size most often, you'll probably be the same in Negative - or at least that's the best place to start.

      Need More Help?

      If you've got specific questions, our awesome customer service team would love to help. No question is too small or TMI (trust us, we've heard it all) - hit us up: hello@negativeunderwear.com

      How do I find out what size I am in Bras?

      If you don't like the fit of your current bras, pull out a tape measure and let's figure out what size you are in 4 easy steps

      Step 1: Bra and Tape

      Wear your best-fitting, unpadded, underwire bra and nothing else. Grab a soft tape measure that is in inches.

      Step 2: Band Measurement

      Wrap a tape measure around your ribcage, following the base of your bra band - pull taut so there's no dip in the tape, but not so tight that you create an indent. This number, in inches, is your band measurement. If the number is odd, round up to the nearest even.

      Step 3: Bust Measurement

      Move the tape around the fullest part of your bust, typically at the center of your nips, wrap evenly around your back, holding taut without any dipping. Take this measurement in inches, this is your bust measurement.

      Step 4: Bra Size

      Take your bust measurement (second one) and subtract your band measurement (first one). Each inch difference between your band and bust measurements equals one cup size. The band measurement and cup size combined are your underwire bra size.

      An Example