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

Sieve Thong Custom 2-Pack in

Sieve Thong Custom 2-Pack

4.8
Rated 4.8 out of 5 stars
1,379 Reviews

Low rise. Semi sheer mesh.

A low rise thong in our airy light, subtly sheer, naturally smoothing Belgian micromesh.
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong Custom 2-Pack
Sieve Thong 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, dry flat

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
4.8
Rated 4.8 out of 5 stars
Based on 1,379 reviews
1,379 reviews
  • Gary D.
    Verified Buyer
    Size Purchased M
    How it Fits True to Size
    Age 65+
    Jean Size 10
    4 minutes ago
    Size Purchased M
    How it Fits True to Size
    Age 65+
    Jean Size 10
    Sieve Thong in Slate
    Reviewing
    Sieve Thong in Slate
    Rated 5 out of 5 stars
    Very nice

    She liked the Comfortable fit.

  • Frank B.
    Verified Buyer
    Size Purchased L
    How it Fits True to Size
    Age 45 - 54
    Jean Size 8, 10, 29, 30
    Yesterday
    Size Purchased L
    How it Fits True to Size
    Age 45 - 54
    Jean Size 8, 10, 29, 30
    Sieve Thong in White
    Reviewing
    Sieve Thong in White
    Rated 5 out of 5 stars
    Comfortable, well-made.

    While a little pricey, the Sieve underwear line is comfortable, well-made, and stylish. Worth the investment!

  • katherine d.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 65+
    Jean Size 27, 28, 6
    3 days ago
    Size Purchased S
    How it Fits True to Size
    Age 65+
    Jean Size 27, 28, 6
    Sieve Thong in Buff + Black
    Reviewing
    Sieve Thong in Buff + Black
    Rated 5 out of 5 stars
    pretty

    nice

  • katherine d.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 65+
    Jean Size 27, 28, 6
    3 days ago
    Size Purchased S
    How it Fits True to Size
    Age 65+
    Jean Size 27, 28, 6
    Sieve Thong in Buff + White
    Reviewing
    Sieve Thong in Buff + White
    Rated 5 out of 5 stars
    pretty

    nice

  • G R.
    Verified Buyer
    Size Purchased L
    How it Fits True to Size
    Age 35 - 44
    Jean Size 10
    5 days ago
    Size Purchased L
    How it Fits True to Size
    Age 35 - 44
    Jean Size 10
    Sieve Thong in Buff + White
    Reviewing
    Sieve Thong in Buff + White
    Rated 5 out of 5 stars
    Perfect and my husband appreciates my new style

    Love love love. This is my new go to brand. Husband approved

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