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Free shipping over $100. Free returns shipping, always.

Micro mesh is slightly sheer, but not transparent
Cheeky cut and barely there leg elastics are seamless under jeans
Super soft elastic waist band lays flat at the hips
Sieve Brief in Black

Sieve Brief in Black

Looks like special occasion, but feels like everyday - the search for your perfect go-to ends here.
  • Subtly sheer Belgian honeycomb micromesh
  • Silky plush Japanese elastic waist band
  • Low rise, cheeky cut flatters the tush
  • Invisible under jeans, not under a silk slip dress
    • Naomi is 5'9", size 26 jeans, and wearing size 1
    • 0 = XS/S (jeans size: 24, 25, 26)
    • 1 = S/M (jeans size 26, 27, 28)
    • 2 = M/L (jeans size 28, 29, 30)
    • Fit is low rise
    • If you prefer a looser fit, higher rise or are graced with a curvier derrière, you may consider sizing up

    • Questions? Talk to us: hello@negativeunderwear.com
    Free domestic shipping on orders over $100; free domestic returns, always. 
    Underwear bottoms must be unworn, with tags attached, to be eligible for merchandise credit. While we can’t offer refunds for underwear bottoms, we’re confident you’ll put your merchandise credit to good use! They never expire, and can be used for anything on our site.

    Want more info about materials, care instructions or policies? FAQ's or hello@negativeunderwear.com.

      $35.00
      Looks like special occasion, but feels like everyday - the search for your perfect go-to ends here.
      • Subtly sheer Belgian honeycomb micromesh
      • Silky plush Japanese elastic waist band
      • Low rise, cheeky cut flatters the tush
      • Invisible under jeans, not under a silk slip dress
        • Naomi is 5'9", size 26 jeans, and wearing size 1
        • 0 = XS/S (jeans size: 24, 25, 26)
        • 1 = S/M (jeans size 26, 27, 28)
        • 2 = M/L (jeans size 28, 29, 30)
        • Fit is low rise
        • If you prefer a looser fit, higher rise or are graced with a curvier derrière, you may consider sizing up

        • Questions? Talk to us: hello@negativeunderwear.com
        Free domestic shipping on orders over $100; free domestic returns, always. 
        Underwear bottoms must be unworn, with tags attached, to be eligible for merchandise credit. While we can’t offer refunds for underwear bottoms, we’re confident you’ll put your merchandise credit to good use! They never expire, and can be used for anything on our site.

        Want more info about materials, care instructions or policies? FAQ's or hello@negativeunderwear.com.

          Pair it with ->

          Balconette bra shown here on MK, size 34C Balconette bra shown here on MK, size 34C
          Sieve Balconette Bra in Black $85
          MK, shown here, is a size 34C bra, wearing a size 2 MK, shown here, is a size 34C bra, wearing a size 2
          Sieve Non-Wire Bra in Black $55
          MK, shown here, is a size 26 jeans, wearing a size 1 MK, shown here, is a size 26 jeans, wearing a size 1
          Sieve Thong in Black $28
          Ever notice this detail in our logo? Hint: the 2nd E in NEGATIVE Ever notice this detail in our logo? Hint: the 2nd E in NEGATIVE
          Merch Jumper in Grey $65

          @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