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Triangle cut is low coverage at the front and sides [Giselle 1]
Moon is a pale silvery grey tone [Giselle 1]
Sieve Triangle Bra in Moon
Adjustable hook & eye and strap sliders in the back [Giselle 1]
A triangle bra and low rise thong in our signature micromesh [Giselle 1]
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Sieve Triangle Bra

Rated 4.5 out of 5
Based on 1211 reviews

Surprising support. Deep v neckline.


Our signature Sieve mesh in a lower coverage triangle cut. Great shape - no pad or wire included.
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Free U.S. shipping on orders over $100. Easy returns.

Fit

  • Size Chart
  • Use this as a guide. Preference is a huge factor — if you're near the top of a size range and/or prefer more coverage, you may want to size up.
  • Triangle cut has lower coverage in both the cups and the sides. 

Fabric + Care

  • Size Chart
  • Made from a sheer Belgian power micromesh — nipples are visible
  • A soft silvery cloud lunar dust baby bunny ears tone
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • Wireless
  • Hand wash in cold water, dry flat

FAQ

  • 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 Brief in Moon Sieve Brief in Moon (alternate view) Sieve Brief in Moon $35 +
Sieve High-Waist Brief in Moon Sieve High-Waist Brief in Moon (alternate view) Sieve High-Waist Brief in Moon $45 +
Whipped High Rise in Moon Whipped High Rise in Moon (alternate view) Whipped High Rise in Moon $45 +
Whipped Boy Short in Moon Whipped Boy Short in Moon (alternate view) Whipped Boy Short in Moon $45 +
Write a Review
average rating 4.5 out of 5
Based on 1211 reviews
  • 5 Stars
    867 Reviews
  • 4 Stars
    150 Reviews
  • 3 Stars
    108 Reviews
  • 2 Stars
    50 Reviews
  • 1 Star
    36 Reviews
88% of reviewers would recommend this product to a friend
Overall
Rated 0 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
1211 Reviews
Reviewed by David M.
Verified Buyer
Review posted
Sieve Triangle Bra in Buff + White
Reviewing
Sieve Triangle Bra in Buff + White
I recommend this product
Rated 5 out of 5
Size Purchased
5
How it Fits
A Little Big
Age Range
35 - 44
Bra Size
38D

Great bra

Great bra

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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 John C.
Verified Buyer
Review posted
Sieve Triangle Bra in White
Reviewing
Sieve Triangle Bra in White
I recommend this product
Rated 5 out of 5
Size Purchased
3
How it Fits
True to Size
Age Range
55 - 64
Bra Size
36D

bra

very nice and sexy

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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 STEPHANIE R.
Verified Buyer
Review posted
Sieve Triangle Bra in Coral
Reviewing
Sieve Triangle Bra in Coral
I recommend this product
Rated 5 out of 5
Size Purchased
5+
How it Fits
True to Size
Age Range
45 - 54
Bra Size
40B

Love it!

Love this one too! And the color!! Fits great-true to size

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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?

Non-Wire Bra Sizing

Non-Wire Bra Sizing Size Chart

* Non-wire bra sizing can vary by preference and if you're toward the top of a size range and prefer more coverage, you may want to size up. For styles available in + sizes (designed with additional support details for our larger cup customers), we find DD's can be on the cusp - if you prefer more coverage and support, we suggest the + bra equivalent for your band size.

Btw, the size nomenclature has changed for Bra Tops. Here's the conversion:
XS=0, S=1, M=2, L=3, XL=4, XXL=5

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

@negativeunderwear