Buy more, save money
Thumbnail image #1 of Sieve Brief Custom 2-Pack
Thumbnail image #2 of Sieve Brief Custom 2-Pack
Thumbnail image #3 of Sieve Brief Custom 2-Pack
Thumbnail image #4 of Sieve Brief Custom 2-Pack
Thumbnail image #5 of Sieve Brief Custom 2-Pack
Thumbnail image #6 of Sieve Brief Custom 2-Pack
Thumbnail image #7 of Sieve Brief Custom 2-Pack
Thumbnail image #8 of Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack

Sieve Brief Custom 2-Pack in

Sieve Brief Custom 2-Pack

4.5
Rated 4.5 out of 5 stars
466 Reviews

Ultra low rise. Honeycomb micromesh.


Sieve fan? Meet your matching bottom and feel all sorts of pulled together.
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack

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
  • A caramel-y sunrise desert sands affogato tone
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • 100% Cotton gusset lining
  • Wash on delicates/cold, tumble dry low

FAQ

  • Price-slashed items are either exchange only or final sale. Any item marked as "exchange only" are eligible for direct size exchange only (aka no refunds). Items marked as "final sale" are not eligible for returns or exchanges.
  • 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
View full details
4.5
Rated 4.5 out of 5 stars
Based on 466 reviews
466 reviews
  • Malikah Q.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 45 - 54
    Jean Size 26
    4 minutes ago
    Size Purchased S
    How it Fits True to Size
    Age 45 - 54
    Jean Size 26
    Sieve Brief in Slate
    Reviewing
    Sieve Brief in Slate
    Rated 5 out of 5 stars
    Obsessed

    Best purchase I could have made...it's the simple thing for me!

  • Ina M.
    Verified Buyer
    Size Purchased XS
    How it Fits A Little Small
    Age 55 - 64
    Jean Size 25
    6 days ago
    Size Purchased XS
    How it Fits A Little Small
    Age 55 - 64
    Jean Size 25
    Sieve Brief in Buff
    Reviewing
    Sieve Brief in Buff
    Rated 4 out of 5 stars
    Nice

    I really like them. Gave 4 stars because of the thick band at the top.

  • Mary R.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 65+
    Jean Size 26
    1 week ago
    Size Purchased S
    How it Fits True to Size
    Age 65+
    Jean Size 26
    Sieve Brief in Black
    Reviewing
    Sieve Brief in Black
    Rated 5 out of 5 stars
    Chic mom

    Very comfortable

    It does leave lines through pants

    But very cute on!

  • S H.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 55 - 64
    Jean Size 26
    2 weeks ago
    Size Purchased S
    How it Fits True to Size
    Age 55 - 64
    Jean Size 26
    Sieve Brief in Slate
    Reviewing
    Sieve Brief in Slate
    Rated 5 out of 5 stars
    Nice fit

    These fit well and look great!

  • sharon
    1 month ago
    Sieve Brief in Peach
    Reviewing
    Sieve Brief in Peach
    Rated 1 out of 5 stars
    1 Star

    Really BIG!

Reviews LoadedReviews Added
Detail view of Sieve Brief Custom 2-Pack for sizer