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Free US shipping on orders over $100, easy returns

Our signature plush elastic underband hugs and never digs
A bra as comfortable as your favorite denim? No kidding.
Anastasia, shown here, is wearing size 34B
Sieve Demi Bra in Slate

Sieve Demi Bra in Slate

Polished but unexpected at the same time. A new way to do neutrals.
  • Underwire demi cup bra
  • Subtly sheer Belgian honeycomb micromesh
  • Velvety plush elastic underband
  • Heat transferred care label = no itchy tags
  • Silky straps softer than you've ever felt
  • Seamless under tees
  • Moderate support and nipple coverage
  • This bra is very adaptive and typically fits true to size
  • 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

    $70
    Only a few left!
    Polished but unexpected at the same time. A new way to do neutrals.
    • Underwire demi cup bra
    • Subtly sheer Belgian honeycomb micromesh
    • Velvety plush elastic underband
    • Heat transferred care label = no itchy tags
    • Silky straps softer than you've ever felt
    • Seamless under tees
    • Moderate support and nipple coverage
    • This bra is very adaptive and typically fits true to size
    • 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 ->

      Sold Out
      MK, shown here, is a size 26 jean, wearing a size 1 Sieve Brief in Slate
      Sieve Brief in Slate $35
      Only a few left!
      Silky elastic waistband hugs your curves but won't dig Sieve High-Waist Brief in Slate
      Sieve High-Waist Brief in Slate $45
      Sold Out
      Sieve Thong in Slate Our signature plush elastic waistband sits flat, never digs or rolls
      Sieve Thong in Slate $28
      Sort of sleepwear. Sort of underwear. However you wear it, it's dreamy. Drop-needle stitch creates a subtle, vertical stripe effect
      Whipped High Rise in White $45

      @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