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Sieve Longline Bra
Bestselling mesh fabric. Extended band for extra support.
Our power micromesh in a smoothing, higher-coverage silhouette.
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Description
Bestselling mesh fabric. Extended band for extra support.
Our power micromesh in a smoothing, higher-coverage silhouette.
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
- Babe is a pink lemonade bubblegum tone
- 74% Polyamide (Nylon) and 26% Elastane (Spandex)
- Certified Safe: OEKO-TEX® STANDARD 100 #23.HCN.86212 by Hohenstein HTTI
- Wash on delicates/cold, 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.
- 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.
- 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
Complete the set >


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.
Q’s about sizing or fit? Email us at hello@negativeunderwear.com
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- Andrew S.Verified BuyerSize Purchased 3How it Fits True to SizeAge Range 45 - 54Bra Size 34D2 hours agoSize Purchased 3How it Fits True to SizeAge Range 45 - 54Bra Size 34DReviewingSieve Longline Bra in BabeRated 5 out of 5 starsLove!!!!!
I have 3 of these. My very favorite. I love the shape it gives under clothes.
Was this helpful? - Gwladys L.Verified BuyerSize Purchased LHow it Fits True to SizeAge Range 35 - 44Bra Size 34CYesterdaySize Purchased LHow it Fits True to SizeAge Range 35 - 44Bra Size 34CReviewingSieve Longline Bra in BlackRated 5 out of 5 starsAmazing
Looks so flattering and it is also comfortable.
I have the full set in black and beige.
Was this helpful? - Gael2 weeks agoReviewingSieve Longline Bra in BabeRated 1 out of 5 stars1 Star
Too big
Was this helpful? - Gregory2 weeks agoReviewingSieve Longline Bra in BlackRated 5 out of 5 stars5 Stars
I live in a hot tropical climate. These are a relief
Was this helpful? - Karen A.Verified BuyerSize Purchased 1How it Fits A Little SmallAge Range 45 - 54Bra Size 34B1 month agoSize Purchased 1How it Fits A Little SmallAge Range 45 - 54Bra Size 34BReviewingSieve Longline Bra in BabeRated 5 out of 5 starsLove it!
Bought every color. Now need all bare.
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