Sieve Racerback Bra in Black
Sieve Racerback Bra
Minimal visibility. Surprising support.
Our most-requested style. A refined T-back, front closure, wireless bra, in our best-selling Sieve power mesh.
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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.
- Single T-strap back for minimal visibility under racerback or cutaway tops
- Plunging deep-V front neckline with front click closure
- Metallic front closure clicks closed so you know you're secure
- Adjustable shoulder straps and a narrow, stretch-fit bottom band
Fabric + Care
- Made from a sheer Belgian power micromesh — nipples are visible
- 74% Polyamide (Nylon) 26% Elastane (Spandex)
- OEKO-TEX® STANDARD 100 certified
- Wireless
- Discreet metal front click closure and strap adjustment details
- Machine wash warm, hang dry, wear often
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
- Megan F.Verified BuyerSize Purchased 1How it Fits A Little SmallAge Range 35 - 44Bra Size 32C36 minutes agoSize Purchased 1How it Fits A Little SmallAge Range 35 - 44Bra Size 32CReviewingSieve Racerback Bra in GraphiteRated 5 out of 5 starsSurprisingly supportive
This bra is small in size but quite supportive, feels like it rides a little bit smaller than other similar sizes in other styles
Was this helpful? - William P.Verified BuyerSize Purchased 3How it Fits True to SizeAge Range 25 - 34Bra Size 34D15 hours agoSize Purchased 3How it Fits True to SizeAge Range 25 - 34Bra Size 34DReviewingSieve Racerback Bra in SparkRated 5 out of 5 starsLoved the bra!
My wife loved it! In her words: “comfortable AF!”
Was this helpful? - William W.Verified BuyerSize Purchased 5How it Fits True to SizeAge Range 35 - 44Bra Size 40C18 hours agoSize Purchased 5How it Fits True to SizeAge Range 35 - 44Bra Size 40CReviewingSieve Racerback Bra in OrchidRated 5 out of 5 starsSieve racerback
Fits really well and looks great!
Was this helpful? - Lisa D.Verified BuyerSize Purchased 4How it Fits True to SizeAge Range 45 - 54Bra Size 36DD/E4 days agoSize Purchased 4How it Fits True to SizeAge Range 45 - 54Bra Size 36DD/EReviewingSieve Racerback Bra in SparkRated 5 out of 5 starsSuper cute!
I love my other triangle bras in the sieve fabric and have been wanting a racer back for a while. The spark adds some fun shimmer! A great addition to my other Negative bras
Was this helpful? - Kimberly H.Verified BuyerSize Purchased 4How it Fits A Little BigAge Range 35 - 44Bra Size 32DDD/F1 week agoSize Purchased 4How it Fits A Little BigAge Range 35 - 44Bra Size 32DDD/FReviewingSieve Racerback Bra in BuffRated 5 out of 5 starsLove this bra!
Wow. I was not expecting much but this bra is amazing. It’s supportive and feels like wearing nothing.
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