[Ksenia XS]
[Ksenia XS]
[Ksenia XS]
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[Ksenia XS] [Ksenia XS] [Ksenia XS]

Sieve Brief in White Boa

Rated 4.6 out of 5
Based on 280 reviews

Ultra low rise. Honeycomb micromesh.


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

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 medium/pale grey snakeskin print on white base 
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • 100% Cotton gusset lining
  • Wash on delicates/cold, tumble dry low

FAQ

  • 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
average rating 4.6 out of 5
Based on 280 reviews
  • 5 Stars
    209 Reviews
  • 4 Stars
    41 Reviews
  • 3 Stars
    19 Reviews
  • 2 Stars
    4 Reviews
  • 1 Star
    7 Reviews
91% of reviewers would recommend this product to a friend
280 Reviews
Reviewed by Lacey W.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
M
How it Fits
True to Size
Age
45 - 54
Jean Size
  • 28

Everything is Peachy!

Love my new briefs. They look big but they fit perfectly! et

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Overall
Rated 2 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Natalie W.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
M
How it Fits
A Little Small
Age
45 - 54
Jean Size
  • 27

Cute

I needed to size up a size.

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Overall
Rated 2 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Lillian M.
Verified Buyer
Review posted
Rated 3 out of 5
Size Purchased
S
How it Fits
True to Size
Age
18 - 24
Jean Size
  • 27

Well-made but a bit ill-fitting

Beautifully made, but the fit is a bit strange on me. The waistband is a bit too loose, and the cut is a bit too cheeky, leading to near-constant wedgies. I wear them occasionally, but I definitely don't reach for these on a regular basis

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Overall
Rated 0 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 4 out of 5
Comfort
Rated 2 out of 5
Was this helpful?
Detail view of Sieve Brief in White Boa for sizer