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
Sieve Brief in Navy
Sieve Brief in Navy
Sieve Brief in Navy
Sieve Brief in Navy
flat
Thumbnail image #1 of Sieve Brief in Navy
Thumbnail image #2 of Sieve Brief in Navy
Thumbnail image #3 of Sieve Brief in Navy
Thumbnail image #4 of Sieve Brief in Navy
Buy more, save money
Sieve Brief in Navy
Sieve Brief in Navy
Sieve Brief in Navy
Sieve Brief in Navy

Sieve Brief

4.5
Rated 4.5 out of 5 stars
384 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
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • 100% Cotton gusset lining
  • Wash on delicates/cold, tumble dry low

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 Navy Sieve Non-Wire Bra in Navy (alternate view) Sieve Non-Wire Bra in Navy $70 +
Sieve Triangle Bra in Navy Sieve Triangle Bra in Navy (alternate view) Sieve Triangle Bra in Navy $70 +
Whipped Non-Wire Bra in Navy Whipped Non-Wire Bra in Navy (alternate view) Whipped Non-Wire Bra in Navy $68 +
Whipped Boy Short in Navy Whipped Boy Short in Navy (alternate view) Whipped Boy Short in Navy $45 +
4.5
Rated 4.5 out of 5 stars
Based on 384 reviews
Write a Review (Opens in a new window)
384 reviews
  • Darrien P.
    Verified Buyer
    Size Purchased L
    How it Fits True to Size
    Age 45 - 54
    Jean Size 31
    6 minutes ago
    Size Purchased L
    How it Fits True to Size
    Age 45 - 54
    Jean Size 31
    Sieve Brief in Navy
    Reviewing
    Sieve Brief in Navy
    Rated 5 out of 5 stars
    So comfy

    Love that they had some mild compression and stayed in place!

    Was this helpful?
  • Valerie P.
    Verified Buyer
    Size Purchased M
    How it Fits True to Size
    Age 55 - 64
    Jean Size 28
    23 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
    Comfortable, Light, and Fits Beautifully

    My first pair to try them out... loved them. I will definitely be buying more, in bulk!

    Was this helpful?
  • Michelle Y.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 35 - 44
    Jean Size 27
    23 hours ago
    Size Purchased S
    How it Fits True to Size
    Age 35 - 44
    Jean Size 27
    Sieve Brief in Navy
    Reviewing
    Sieve Brief in Navy
    Rated 5 out of 5 stars
    High quality

    Absolute high quality. I understand the pricing of this brand and it's all worth every penny. It is not just some cheap sheer material. Will definitely buy more! Next time I will try high waist.

    Was this helpful?
  • Lisa M.
    Verified Buyer
    Size Purchased XL
    How it Fits A Little Small
    Age 45 - 54
    Jean Size 32, 14
    Yesterday
    Size Purchased XL
    How it Fits A Little Small
    Age 45 - 54
    Jean Size 32, 14
    Sieve Brief in Slate
    Reviewing
    Sieve Brief in Slate
    Rated 5 out of 5 stars
    Undies

    I love them!

    Was this helpful?
  • Brenda R.
    Verified Buyer
    Size Purchased L
    How it Fits A Little Big
    Age 45 - 54
    2 days ago
    Size Purchased L
    How it Fits A Little Big
    Age 45 - 54
    Sieve Brief in Navy
    Reviewing
    Sieve Brief in Navy
    Rated 1 out of 5 stars
    Fit oddly

    Fit me oddly with the waist being a bit too big while the rest seemed ro fit. Also for mid rise on me fit kind of low. I don’t know what to make of the fit. The material is also odd to me like a “ballistic” mesh. I wish I’d just gone with the whipped collection but couldnt find matching sets during sale. Unhappy.

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

@negativeunderwear