Free US shipping on orders over $100, easy returns

MK, shown here, is a size 34D bra, wearing a size 3
Pairs perfectly with our Sieve High-Waist Brief in Slate
4-row hook & eye closure allows for a more custom fit
Sieve Non-Wire Bra in Slate

Sieve Non-Wire Bra in Slate

Rated 4.9 out of 5
22 Reviews
That bra you tell all your friends about and don't want to take off? Yup, this is that bra. 
  • Now back in stock(!!!)
  • We've updated our fit - double check size chart
  • Subtly sheer Belgian honeycomb micromesh
  • More shaping and support than you'd expect from a wireless
  • Heat transferred care label = no itchy tags
  • Silky no-slip straps softer than you've ever felt
  • 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
    That bra you tell all your friends about and don't want to take off? Yup, this is that bra. 
    • Now back in stock(!!!)
    • We've updated our fit - double check size chart
    • Subtly sheer Belgian honeycomb micromesh
    • More shaping and support than you'd expect from a wireless
    • Heat transferred care label = no itchy tags
    • Silky no-slip straps softer than you've ever felt
    • 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

      average rating 4.9 out of 5
      Based on 22 reviews
      • 5 Stars
        19 Reviews
      • 4 Stars
        3 Reviews
      • 3 Stars
        0 Reviews
      • 2 Stars
        0 Reviews
      • 1 Star
        0 Reviews
      100% 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
      22 Reviews
      Rated 5 out of 5
      Review posted

      Comfortable and supportive

      Love everything about this bra. It’s comfortable like a bralette yet supportive. 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?
      Rated 5 out of 5
      Review posted

      Outstanding

      comfortable and sexy. my boyfriend loves it and so do i.

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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?
      Rated 5 out of 5
      Review posted

      love it

      I love this bra! Fits nicely - I’m a 2 but probably could have gone with a 1 if I wanted it a bit tighter. I wear it all the time and am writing this review so I get a discount to buy another color.

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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?
      Rated 5 out of 5
      Review posted

      Best bra ever!

      I was highly skeptical that I would be able to wear this bra and have enough support and also be able to wear it under tight shirts but it’s overall pretty perfect. Wish the material was a little softer but oh well!

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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 3 out of 5
      Was this helpful?
      Rated 4 out of 5
      Review posted

      Love

      Will be buying more. Sieve bra supports D bust and extremely comfortable. Seems to minimize somewhat and that’s wonderful

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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?