Sieve Triangle Bra in Navy
Sieve Triangle Bra
Surprising support. Deep v neckline.
Our signature Sieve mesh in a lower coverage triangle cut. Great shape - no pad or wire included. Create a custom 2 Pack ->
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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
- Made from a sheer Belgian power micromesh — nipples are visible
- 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 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
Non-Wire Bra Sizing
Your underbust: | A | B | C | D | DD | DDD | G | |
---|---|---|---|---|---|---|---|---|
24-26" | 30 | 0 | 0 | 0 | 1 | 1* | 1+ | |
26-28" | 32 | 0 | 0 | 1 | 2 | 2* | 1+ | 1+ |
28-30" | 34 | 1 | 1 | 2 | 2 | 3* | 2+ | 2+ |
30-32" | 36 | 1 | 2 | 3 | 3 | 4* | 3+ | 3+ |
32-34" | 38 | 3 | 3 | 4 | 4 | 5* | 4+ | 4+ |
35-38" | 40 | 3 | 5 | 5 | 5 | 5* | 5+ | 5+ |
38-40" | 42 | 5 | 5 | 5 | 5* |
* 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
- SEUVerified BuyerSize Purchased 2How it Fits True to SizeAge Range 25 - 34Bra Size 34DD/E5 minutes agoSize Purchased 2How it Fits True to SizeAge Range 25 - 34Bra Size 34DD/EReviewingSieve Triangle Bra in CherryRated 5 out of 5 starsBEST BRA I OWN, PLEASE MAKE MORE COLORS
I never write reviews but this one deserves it.
Sieve triangle bra in both black and cherry get me through the week.
I'm 34DD and wear a size 2. They're super supportive, just wish it came in more colors.
PLEASE MAKE THIS IN WHITE AND MORE COLORFUL SHADES AS WELL.
Was this helpful? - Haley B.Verified BuyerYesterdayReviewingSieve Triangle Bra in CoralRated 5 out of 5 starsBeen waiting to try!
I have several sieve, this was my first triangle!
Was this helpful? - Sarah E.Verified BuyerSize Purchased 5How it Fits A Little SmallAge Range 25 - 34Bra Size 36D2 days agoSize Purchased 5How it Fits A Little SmallAge Range 25 - 34Bra Size 36DReviewingSieve Triangle Bra in Buff + WhiteRated 5 out of 5 starsComfortable, Cute, Sizes are on the smaller side
One of the few products that looks as good in person as it did in the online advertisement. I would definitely buy another one of these. Enough support for bigger boobs and really comfortable but I have the straps at the longest they will go and that doesn't usually happen to me with other bras.
Was this helpful? - Grace M.Verified BuyerSize Purchased 0How it Fits True to SizeAge Range 25 - 34Bra Size 30C3 days agoSize Purchased 0How it Fits True to SizeAge Range 25 - 34Bra Size 30CReviewingSieve Triangle Bra in PunchRated 2 out of 5 starsMeh
I was so excited to try this, but it missed the mark. I like negative’s glacé and whipped fabric, and I was ready to be impressed with sieve. I purchased it in punch, size 0 (I’m 32b/30c) and the sizing was fine, but the mesh fabric felt SO cheap and scratchy, the band had snags/hanging threads and deep creases in it, and the color was a dull dark pink, not bright like the photos. Horrible quality for the price. If you want a great mesh bra, try CUUP, not this.
Was this helpful? - Dawn3 days agoReviewingSieve Triangle Bra in BuffRated 4 out of 5 stars4 Stars
Love, but run a little small
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