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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
1,439 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
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
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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 60 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 1,439 reviews
1,439 reviews
  • Sarah L.
    Verified Buyer
    Size Purchased XS
    How it Fits True to Size
    Age 25 - 34
    Jean Size 25
    4 hours ago
    Size Purchased XS
    How it Fits True to Size
    Age 25 - 34
    Jean Size 25
    Sieve Thong in Slate
    Reviewing
    Sieve Thong in Slate
    Rated 5 out of 5 stars
    Comfortable and Versatile

    This style is so comfortable you barely know it’s there. It doesn’t dig in or move around. I can wear these for both everyday use and during my long runs and workouts, so this style gets an immediate A+ from me.

  • Kate B.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 45 - 54
    Jean Size 27
    9 hours ago
    Size Purchased S
    How it Fits True to Size
    Age 45 - 54
    Jean Size 27
    Sieve Thong in Coral
    Reviewing
    Sieve Thong in Coral
    Rated 5 out of 5 stars
    New daily favorite

    Amazingly comfortable. Impossibly sexy. The color palette in Sieve works so well you can easily mix and match bras and thongs for daily use. Doesn’t always have to be a “set” to look positively perfect.

  • Julia O.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 25 - 34
    Jean Size 25, 26
    3 days ago
    Size Purchased S
    How it Fits True to Size
    Age 25 - 34
    Jean Size 25, 26
    Sieve Thong in Slate
    Reviewing
    Sieve Thong in Slate
    Rated 5 out of 5 stars
    Love this color!

    Have these to match the Sieve bra (w/ underwire) - obsessed!

  • Julia O.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 25 - 34
    Jean Size 25, 26
    3 days ago
    Size Purchased S
    How it Fits True to Size
    Age 25 - 34
    Jean Size 25, 26
    Sieve Thong in Buff
    Reviewing
    Sieve Thong in Buff
    Rated 5 out of 5 stars
    Love!

    Have these to match the Sieve bra - obsessed!

  • Julia O.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 25 - 34
    Jean Size 25, 26
    3 days ago
    Size Purchased S
    How it Fits True to Size
    Age 25 - 34
    Jean Size 25, 26
    Sieve Thong in Navy
    Reviewing
    Sieve Thong in Navy
    Rated 5 out of 5 stars
    Love!

    Have these to match the Sieve bra - obsessed!

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