Your cart
Last Day, Spend $350 and Get a Free $75 Gift Card!
Our Annual Sale is here! Shop Now
Free U.S. Shipping on orders over $100; easy returns
International Shipping now available!
Give $20, Get $20!
Buy more, save money
[Adelina XS]
[Adelina XS]
[Adelina XS]
[Morgan M]
[Morgan M]
[Morgan M]
  • Thumbnail image #1 of Sieve String Thong in Buff [Adelina XS]
  • Thumbnail image #2 of Sieve String Thong in Buff [Adelina XS]
  • Thumbnail image #3 of Sieve String Thong in Buff [Adelina XS]
  • Thumbnail image #4 of Sieve String Thong in Buff [Morgan M]
  • Thumbnail image #5 of Sieve String Thong in Buff [Morgan M]
  • Thumbnail image #6 of Sieve String Thong in Buff [Morgan M]
Buy more, save money
Product photo #1 of Sieve String Thong in Buff [Adelina XS] Product photo #2 of Sieve String Thong in Buff [Adelina XS] Product photo #3 of Sieve String Thong in Buff [Adelina XS] Product photo #4 of Sieve String Thong in Buff [Morgan M] Product photo #5 of Sieve String Thong in Buff [Morgan M] Product photo #6 of Sieve String Thong in Buff [Morgan M]

Sieve String Thong

Rated 4.8 out of 5
Based on 86 reviews

Barely there thong. Semi sheer mesh.


Under where? Our most minimal cut, now in our best selling Belgian micromesh.

Buy more, save $

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 
  • Thin elastic waistband won’t dig
  • A caramel-y sunrise desert sands affogato tone
  • Our most minimal, seamless underwear option
  • Can be worn around the hips or pulled high to the natural waistline
  • 74% Polyamide (Nylon) and 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 final sale. Full priced items and packs purchased with the 15% off discount are eligible for refund, credit or exchange. 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

Pair it with ->

Sieve Non-Wire Bra in Buff Sieve Non-Wire Bra in Buff (alternate view) Sieve Non-Wire Bra in Buff $65 +
Glacé Triangle Bra in Buff Glacé Triangle Bra in Buff (alternate view) Glacé Triangle Bra in Buff $68 +
Essaouira Non-Wire Bra in Buff Essaouira Non-Wire Bra in Buff (alternate view) Essaouira Non-Wire Bra in Buff $65 +
Cotton Bra Cami in Buff Cotton Bra Cami in Buff (alternate view) Cotton Bra Cami in Buff $60
Write a Review
average rating 4.8 out of 5
Based on 86 reviews
  • 5 Stars
    75 Reviews
  • 4 Stars
    4 Reviews
  • 3 Stars
    6 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    1 Review
92% of reviewers would recommend this product to a friend
Overall
Rated 1 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 4 out of 5
86 Reviews
Reviewed by AA
Verified Buyer
Review posted
Sieve String Thong in Buff + White
Reviewing
Sieve String Thong in Buff + White
I recommend this product
Rated 5 out of 5
Size Purchased
L
How it Fits
True to Size
Age
45 - 54
Jean Size
  • 31

Sieve string thong in buff+white

Fit and feel is extremely nice. Mesh is top grade .

Loading...
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 Elizabeth R.
Verified Buyer
Review posted
Sieve String Thong in Black
Reviewing
Sieve String Thong in Black
I recommend this product
Rated 5 out of 5
Size Purchased
S
How it Fits
True to Size
Age
35 - 44
Jean Size
  • 27

Barely There!

Very comfortable, fabric feels like it's barely there! Excellent fit. Highly recommend!

Loading...
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 Kelly F.
Verified Buyer
Review posted
Sieve String Thong in Black
Reviewing
Sieve String Thong in Black
I recommend this product
Rated 5 out of 5
Size Purchased
M
How it Fits
True to Size
Age
45 - 54
Jean Size
  • 27

Sexy , comfortable!

I own multiple of the style!

Loading...
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?

Underwear Sizing

Underwear Sizing Size Chart

Q’s about sizing or fit? Email us at hello@negativeunderwear.com

Detail view of Sieve String Thong in Buff for sizer

@negativeunderwear