![Thumbnail image #1 of Sieve Triangle Bra in Slate [Aube 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Aube1_01_154x154.jpg?v=1703225988)
![Thumbnail image #2 of Sieve Triangle Bra in Slate [Aube 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Aube1_04_154x154.jpg?v=1703225988)
![Thumbnail image #3 of Sieve Triangle Bra in Slate [Aube 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Aube1_02_154x154.jpg?v=1703225988)
![Thumbnail image #5 of Sieve Triangle Bra in Slate [Adelina 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Adalina_02_154x154.jpg?v=1661888021)
![Thumbnail image #6 of Sieve Triangle Bra in Slate [Adelina 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Adalina_03_154x154.jpg?v=1661888021)
![Shown here with our matching Sieve Thong in Slate [Aube 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Aube1_01_thumb.jpg?v=1703225988)
![Hook & eye closure in the back [Aube 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Aube1_04_thumb.jpg?v=1703225988)
![Slate is a cool grey-blue [Aube 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Aube1_02_thumb.jpg?v=1703225988)
![[Adelina 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Adalina_02_thumb.jpg?v=1661888021)
![[Adelina 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Adalina_03_thumb.jpg?v=1661888021)
Sieve Triangle Bra in Slate
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 ->
Buy more, save $
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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
- A steely grey-blue tone
- 74% Polyamide (Nylon) 26% Elastane (Spandex)
- Wireless
- Certified Safe: OEKO-TEX® STANDARD 100 #23.HCN.86212 by Hohenstein HTTI
- Hand wash in cold water, dry flat
FAQ
![Shown here with our matching Sieve Thong in Slate [Aube 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Aube1_01.jpg?v=1703225988&width=1445)
![Hook & eye closure in the back [Aube 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Aube1_04.jpg?v=1703225988&width=1445)
![Slate is a cool grey-blue [Aube 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Aube1_02.jpg?v=1703225988&width=1445)
![[Adelina 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Adalina_02.jpg?v=1661888021&width=1445)
![[Adelina 1]](http://negativeunderwear.com/cdn/shop/products/Bra_SieveTriangle_Slate_Adalina_03.jpg?v=1661888021&width=1445)
- KateVerified BuyerSize Purchased 2How it Fits True to SizeAge Range 45 - 54Bra Size 36A6 hours agoSize Purchased 2How it Fits True to SizeAge Range 45 - 54Bra Size 36AReviewingSieve Triangle Bra in Buff + WhiteRated 5 out of 5 starsEffortlessly 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.
- Adrienne T.Verified BuyerSize Purchased 0How it Fits True to SizeAge Range 35 - 44Bra Size 32B3 days agoSize Purchased 0How it Fits True to SizeAge Range 35 - 44Bra Size 32BReviewingSieve Triangle Bra in CherryRated 5 out of 5 starsSupportive and comfy
The triangle style of sieve bra is my favorite one - the fit is perfect and it has just enough support.
- Genevieve B.Verified BuyerSize Purchased 0How it Fits True to SizeAge Range 45 - 54Bra Size 32B3 days agoSize Purchased 0How it Fits True to SizeAge Range 45 - 54Bra Size 32BReviewingSieve Triangle Bra in Buff + BlackRated 3 out of 5 starsSexy!
Had to return a 0 for a 1
- Billy B.Verified BuyerSize Purchased MHow it Fits A Little SmallAge Range 35 - 44Bra Size 34B4 days agoSize Purchased MHow it Fits A Little SmallAge Range 35 - 44Bra Size 34BReviewingSieve Triangle Bra in CherryRated 5 out of 5 starsAbsolutely Love
Amazing products! Highly recommend
- sarah C.Verified BuyerSize Purchased 4How it Fits True to SizeAge Range 35 - 44Bra Size 32DD/E4 days agoSize Purchased 4How it Fits True to SizeAge Range 35 - 44Bra Size 32DD/EReviewingSieve Triangle Bra in Buff + WhiteRated 4 out of 5 starsAlmost perfect.
I’m absolutely keeping them, but the Sieve bras aren’t perfect for my slightly saggy post-breastfeeding breasts. Most of my DD volume is lower, so with this style bra there is some gap in the upper portion of the triangle bra. It’s noticeable without a shirt on (obviously!) but only noticeable under clothes *if* the top is clingy above mid-breast (which isn’t many of my tops).
They are so comfortable and if I bend and fluff a few times a day they fill out more. I’ll keep an eye out for a perfect bra that doesn’t have padding and doesn’t have space… but these will keep me happy enough until that unicorn emerges.
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