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Sieve Triangle Bra in Navy
Sieve Triangle Bra in Navy
Sieve Triangle Bra in Navy
Sieve Triangle Bra in Navy
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Sieve Triangle Bra in Navy

Rated 4.4 out of 5
Based on 628 reviews

Surprising support. Deep v neckline.


Our signature Sieve mesh in a lower coverage triangle cut. 

Free shipping over $100. Easy Returns.

Fit

  • Size Chart
  • Use this as a guide. Preference is a huge factor — the benefit of a non-wire is they're super flexible, so you will likely fit in more than one size. Like a looser band? Size up! Like less coverage? Size down! Still unsure? Try two sizes :)
  • Adjustable straps and hook & eye closure in the back
  • *Note, our Sieve Triangle Bra is an intentionally lower coverage in both the cups and the sides. Wide plush elastic band is extremely adaptable.

Fabric + Care

  • Size Chart
  • Made from a sheer Belgian power micromesh — nipples are visible
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • Hand wash in cold water, 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
average rating 4.4 out of 5
Based on 628 reviews
  • 5 Stars
    437 Reviews
  • 4 Stars
    77 Reviews
  • 3 Stars
    63 Reviews
  • 2 Stars
    35 Reviews
  • 1 Star
    16 Reviews
88% 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
628 Reviews
Reviewed by Sarah
Verified Buyer
Review posted
I don't recommend this product
Rated 2 out of 5
Size Purchased
1
How it Fits
True to Size
Age Range
25 - 34
Bra Size
34B

Disappointed

This bra was very comfortable, but after maybe a dozen wears and two cold water hand washes (air drying flat) the band is fraying. I cannot imagine what would have caught the fabric, it was washed with a couple of non medical marks each time in a shallow smooth plastic wash basin used exclusively for hand washing. It bums me out every time I see it. This bra was part of my pilot Negative purchase, and I do not intend to purchase from this brand again.

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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 2 out of 5
Comfort
Rated 4 out of 5
Was this helpful?
Reviewed by Brian H.
Verified Buyer
Review posted
I don't recommend this product
Rated 3 out of 5
Size Purchased
5
How it Fits
True to Size
Age Range
55 - 64
Bra Size
40C

Too Expensive

The bottom strap does not maintain its structure it crumples up and stays crumpled up until you wash it. It comfortable until the bottom strap crumples under your Breasts. And way too expensive !

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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 2 out of 5
Comfort
Rated 2 out of 5
Was this helpful?
Reviewed by jennifer m.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Size Purchased
4
How it Fits
True to Size
Age Range
55 - 64
Bra Size
38C

No more underwires!

I have worn underwire bras for 45 years...

How refreshing to feel this comfort and support with out them! THANK YOU

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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?