Buy more, save money
Thumbnail image #1 of Sieve Triangle Bra Custom 2-Pack
Thumbnail image #2 of Sieve Triangle Bra Custom 2-Pack
Thumbnail image #3 of Sieve Triangle Bra Custom 2-Pack
Thumbnail image #4 of Sieve Triangle Bra Custom 2-Pack
Thumbnail image #5 of Sieve Triangle Bra Custom 2-Pack
Thumbnail image #6 of Sieve Triangle Bra Custom 2-Pack
Thumbnail image #7 of Sieve Triangle Bra Custom 2-Pack
Thumbnail image #8 of Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack

Sieve Triangle Bra Custom 2-Pack in

Sieve Triangle Bra Custom 2-Pack

4.5
Rated 4.5 out of 5 stars
2,474 Reviews

Surprising support. Deep v neckline.

Our signature Sieve mesh in a lower coverage triangle cut. Great shape - no pad or wire included.
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
0 1 2 3 4 5
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Sieve Triangle Bra Custom 2-Pack
Zip Code
Save
Invalid zip code

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 caramel-y sunrise desert sands affogato tone
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • Wireless
  • Hand wash in cold water, 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
4.5
Rated 4.5 out of 5 stars
Based on 2,474 reviews
2,474 reviews
  • Daniela F.
    Verified Buyer
    Size Purchased 3
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 36B
    3 minutes ago
    Size Purchased 3
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 36B
    Sieve Triangle Bra in Black
    Reviewing
    Sieve Triangle Bra in Black
    Rated 5 out of 5 stars
    Very comfortable and attractive

    Gives support and great overage

  • Arielle L.
    Verified Buyer
    Size Purchased 0
    How it Fits A Little Small
    Age Range 35 - 44
    Bra Size 34B
    5 days ago
    Size Purchased 0
    How it Fits A Little Small
    Age Range 35 - 44
    Bra Size 34B
    Sieve Triangle Bra in Buff
    Reviewing
    Sieve Triangle Bra in Buff
    Rated 2 out of 5 stars
    Boobs look flat

    Between cup sizes - smaller one flattens me and larger one puckers. Mesh not super comfortable

  • Denise G.
    Verified Buyer
    Size Purchased 5
    How it Fits A Little Small
    Age Range 55 - 64
    Bra Size 38C
    5 days ago
    Size Purchased 5
    How it Fits A Little Small
    Age Range 55 - 64
    Bra Size 38C
    Sieve Triangle Bra in Slate
    Reviewing
    Sieve Triangle Bra in Slate
    Rated 5 out of 5 stars
    Love these bras

    I’ve tried quite a few styles, this one has great coverage. Only difference between this and a few other styles is the band feels bit tighter than Glace and the sieve cut out.

  • Vanessa K.
    Verified Buyer
    Size Purchased 1
    How it Fits True to Size
    Age Range 35 - 44
    Bra Size 34B
    1 week ago
    Size Purchased 1
    How it Fits True to Size
    Age Range 35 - 44
    Bra Size 34B
    Sieve Triangle Bra in Buff + White
    Reviewing
    Sieve Triangle Bra in Buff + White
    Rated 5 out of 5 stars
    Love it

    Great quality! So comfy!

  • Kate
    Verified Buyer
    Size Purchased 2
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 36A
    1 week ago
    Size Purchased 2
    How it Fits True to Size
    Age Range 45 - 54
    Bra Size 36A
    Sieve Triangle Bra in Buff + White
    Reviewing
    Sieve Triangle Bra in Buff + White
    Rated 5 out of 5 stars
    Effortlessly beautiful and functional

    My daily staple. I am 5’6” 133# 36A-B. I wear a 2. The wide band though snug initially ultimately forms comfortably to your body so that you forget you’re wearing a bra until it’s time to take it off. Form and function at its finest.

Reviews LoadedReviews Added
Detail view of Sieve Triangle Bra Custom 2-Pack for sizer