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[Ksenia XS]
[Ksenia XS]
[Ksenia XS]
[Brittney XL]
[Brittney XL]
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[Ksenia XS]
[Ksenia XS]
[Ksenia XS]
[Brittney XL]
[Brittney XL]

Sieve Thong

4.8
Rated 4.8 out of 5 stars
1,014 Reviews

Low rise cut. Semi sheer mesh.


A low rise thong in our airy light, subtly sheer, naturally smoothing Belgian micromesh. Create a custom 2 Pack ->
BlackBuffBuff + WhiteGraphiteNavyPeachSlateWhiteBuff + BlackCherryCoralCoral + WhiteGlacierHazeNEWPunchWhite Boa

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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, dry flat

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 +
4.8
Rated 4.8 out of 5 stars
Based on 1,014 reviews
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1,014 reviews
  • Susan K.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 45 - 54
    Jean Size 25
    3 minutes ago
    Size Purchased S
    How it Fits True to Size
    Age 45 - 54
    Jean Size 25
    Sieve Thong in Slate
    Reviewing
    Sieve Thong in Slate
    Rated 5 out of 5 stars
    Great quality

    comfortable!

    Was this helpful?
  • Martha H.
    Verified Buyer
    Size Purchased XL
    How it Fits True to Size
    Age 65+
    Jean Size 14
    Yesterday
    Size Purchased XL
    How it Fits True to Size
    Age 65+
    Jean Size 14
    Sieve Thong in Cherry
    Reviewing
    Sieve Thong in Cherry
    Rated 5 out of 5 stars
    Love it!

    Love it!

    Was this helpful?
  • Joan G.
    Verified Buyer
    Size Purchased XS
    How it Fits True to Size
    Age 65+
    Jean Size 25
    2 days ago
    Size Purchased XS
    How it Fits True to Size
    Age 65+
    Jean Size 25
    Sieve Thong in Buff + Black
    Reviewing
    Sieve Thong in Buff + Black
    Rated 5 out of 5 stars
    💕

    Love the superior quality, fit, strong but sexy Style!!

    Was this helpful?
  • Sloane
    Verified Buyer
    Size Purchased M
    How it Fits True to Size
    Age 25 - 34
    Jean Size 27
    2 days ago
    Size Purchased M
    How it Fits True to Size
    Age 25 - 34
    Jean Size 27
    Sieve Thong in Buff
    Reviewing
    Sieve Thong in Buff
    Rated 5 out of 5 stars
    Amazing

    I’m slowly starting to fill my wardrobe with Negative. Amazing quality and service and look. These are so comfortable, as if they’re not there, while being supportive. Sexy and comfortable and effective. Best kind of underwear.

    Was this helpful?
  • Ryan K.
    Verified Buyer
    Size Purchased L
    How it Fits True to Size
    Age 25 - 34
    Jean Size 28
    2 days ago
    Size Purchased L
    How it Fits True to Size
    Age 25 - 34
    Jean Size 28
    Sieve Thong in Coral
    Reviewing
    Sieve Thong in Coral
    Rated 3 out of 5 stars
    Feel

    Soft

    Was this helpful?
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