Give $20, get $20. Win win.
Free US shipping on orders over $100. Easy returns.
Skip to main content
Your cart
Buy more, save money
[Adelina XS]
[Adelina XS]
[Adelina XS]
flat
Thumbnail image #1 of Sieve Brief in Buff Boa [Adelina XS]
Thumbnail image #2 of Sieve Brief in Buff Boa [Adelina XS]
Thumbnail image #3 of Sieve Brief in Buff Boa [Adelina XS]
Buy more, save money
[Adelina XS]
[Adelina XS]
[Adelina XS]

Sieve Brief

4.5
Rated 4.5 out of 5 stars
376 Reviews

Ultra low rise. Honeycomb micromesh.


Sieve fan? Meet your matching bottom and feel all sorts of pulled together. Create a custom 2 Pack ->
BlackBuffNavyPeachSlateNEWBuff BoaCoralHazeWhite Boa

Buy more, save $

Free U.S. shipping on orders over $100. Easy returns.

Fit

  • Size Chart
  • Use this as a guide. If you prefer a looser fit, we recommend sizing up

Fabric + Care

  • Size Chart
  • Belgian power micromesh is subtly sheer
  • Tonal snakeskin print on our caramel-y sunrise affogato desert sands Buff base
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • 100% Cotton gusset lining
  • Machine wash warm, hang dry, wear often

FAQ

  • Price-slashed, Annual Sale items with a red SALE tag are direct size exchange only (no refunds). Full-priced items purchased with the 20% off discount are eligible for refund, credit or exchange. Click here for more info on our Sale policies.
  • 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

Looks good with ->

Sieve Non-Wire Bra in Buff Sieve Non-Wire Bra in Buff (alternate view) Sieve Non-Wire Bra in Buff $70 +
Sieve Cutout Bra in Buff Sieve Cutout Bra in Buff (alternate view) Sieve Cutout Bra in Buff $70 +
Sieve Cutout Bra in Buff Boa Sieve Cutout Bra in Buff Boa (alternate view) Sieve Cutout Bra in Buff Boa $70 +
Sieve Trim Bralette in Buff Boa Sieve Trim Bralette in Buff Boa (alternate view) Sieve Trim Bralette in Buff Boa $70
4.5
Rated 4.5 out of 5 stars
Based on 376 reviews
Write a Review (Opens in a new window)
376 reviews
  • Michael K.
    Verified Buyer
    Size Purchased XL
    How it Fits True to Size
    Age 35 - 44
    Jean Size 14
    3 minutes ago
    Size Purchased XL
    How it Fits True to Size
    Age 35 - 44
    Jean Size 14
    Sieve Brief in Navy
    Reviewing
    Sieve Brief in Navy
    Rated 5 out of 5 stars
    Great Fit

    Super Sey and Fit Great

    Was this helpful?
  • Merry C.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 55 - 64
    Jean Size 27, 4
    1 hour ago
    Size Purchased S
    How it Fits True to Size
    Age 55 - 64
    Jean Size 27, 4
    Sieve Brief in Navy
    Reviewing
    Sieve Brief in Navy
    Rated 5 out of 5 stars
    Very Sexy

    Love these briefs and the fit is perfect!

    Was this helpful?
  • Stacey R.
    Verified Buyer
    Size Purchased M
    How it Fits True to Size
    Age 55 - 64
    Jean Size 28
    21 hours ago
    Size Purchased M
    How it Fits True to Size
    Age 55 - 64
    Jean Size 28
    Sieve Brief in Navy
    Reviewing
    Sieve Brief in Navy
    Rated 5 out of 5 stars
    Fits great

    Glad I purchased when on sale. Wanted to try and love them.

    Was this helpful?
  • William H.
    Verified Buyer
    Size Purchased M
    How it Fits True to Size
    Age 55 - 64
    Jean Size 8, 10
    22 hours ago
    Size Purchased M
    How it Fits True to Size
    Age 55 - 64
    Jean Size 8, 10
    Sieve Brief in Navy
    Reviewing
    Sieve Brief in Navy
    Rated 5 out of 5 stars
    Great fit...love the feel and look

    Feels great on and looks incredible!

    Was this helpful?
  • Bona Van D.
    Verified Buyer
    Size Purchased M
    How it Fits True to Size
    Age 45 - 54
    Jean Size 28
    Yesterday
    Size Purchased M
    How it Fits True to Size
    Age 45 - 54
    Jean Size 28
    Sieve Brief in Navy
    Reviewing
    Sieve Brief in Navy
    Rated 5 out of 5 stars
    Great Brief

    Really like these. Comfortable and great quality.

    Was this helpful?
Reviews LoadedReviews Added
Detail view of Sieve Brief in Buff Boa for sizer

@negativeunderwear