Sieve Non-Wire Bra in Black
Sieve Non-Wire Bra
Our best selling bra for a reason.
The most supportive of our wireless bras. Great shape, naturally smoothing, airy light and sexy sheer — Belgian micromesh might just be magic. 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.
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
- Molly S.Verified Buyer3 minutes agoReviewingSieve Non-Wire Bra in CoralRated 5 out of 5 starsReally nice
Great fabric and feel
Was this helpful? - Patricia M.Verified BuyerSize Purchased 2How it Fits A Little SmallAge Range 65+Bra Size 34B19 hours agoSize Purchased 2How it Fits A Little SmallAge Range 65+Bra Size 34BReviewingSieve Non-Wire Bra in BlackRated 3 out of 5 starssize is not consistent
I have many of your Sieve bras but this last one and one earlier are significantly smaller than all the other size 2s. I wish I could confidently order size 2 and have it fit like the others.
Was this helpful? - Kristen Z.Verified BuyerSize Purchased 5+How it Fits True to SizeAge Range 45 - 54Bra Size 36C19 hours agoSize Purchased 5+How it Fits True to SizeAge Range 45 - 54Bra Size 36CReviewingSieve Non-Wire Bra in BuffRated 5 out of 5 starsMy new favorite bra
I absolutely love this bra, I’ve tried every bra on the planet and this one is definitely the winner.
Was this helpful? - Katherine L.Verified BuyerYesterdayReviewingSieve Non-Wire Bra in White BoaRated 5 out of 5 starsMy perfect bra
Light, airy fabric with good support and zero underwire. Looks great on, is comfortable & no band roll. As reference: I’m a 34DD/5’1”/125lb and bought the 2+. It’s a perfect fit me me!!
Was this helpful? - Carolyn G.Verified BuyerSize Purchased 2+How it Fits True to SizeAge Range 45 - 54Bra Size 34DYesterdaySize Purchased 2+How it Fits True to SizeAge Range 45 - 54Bra Size 34DReviewingSieve Non-Wire Bra in BuffRated 5 out of 5 starsSupportive & comfortable
This is the bra I’ve been looking for. Supportive & comfortable without wire or straps cutting in anywhere. Highly recommend for bigger chests looking for something like a bralette but with actual support. I got the white in 2 and the buff in 2+. I like the support of the 2+. But the straps are thicker and there is extra fabric on the side for support. The support is good but this makes it a little cute than the regular sizing …
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