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Sits low on the hip and shows off some cheek :) [MK S]
MK, shown here, is a size 26 jean, wearing a size 1 [MK S]
Complete the set with our Sieve Non-Wire Bra in Slate [MK S]
  • Sits low on the hip and shows off some cheek :) [MK S]
  • MK, shown here, is a size 26 jean, wearing a size 1 [MK S]
  • Complete the set with our Sieve Non-Wire Bra in Slate [MK S]
Sieve Brief in Slate Sieve Brief in Slate Sieve Brief in Slate

Sieve Brief

Rated 4.7 out of 5
3 Reviews
Ultra low rise. Honeycomb micromesh.
Sieve fan? Meet your matching bottom and feel all sorts of pulled together.  

Free shipping over $75. Easy Returns.

Fit

  • Size Chart
  • Sizing Breakdown...
    XS fits dress sizes 0-2
    S fits dress sizes 2-4
    M fits dress sizes 6-8
    L fits dress sizes 10-12
    XL fits dress sizes 12-14
  • Use this as a guide. If you prefer a looser fit, we recommend sizing up

Fabric + Care

  • Size Chart
  • Belgian power micromesh is subtly sheer
  • Steely blue-grey tone
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • 100% Cotton gusset lining
  • Wash on delicates/cold, tumble dry low

FAQ

  • All unworn items, with tags attached and in their original packaging are eligible for return or exchange within 21 days of placing your order.
  • 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

Underwear Sizing

Size Chart

Q’s about sizing or fit? Email us at hello@negativeunderwear.com

“Negative Underwear was founded with three words in mind: minimal, considered, and uncomplicated. That's exactly what its bras are."  

“I'm obsessed with your underwear - the only thing I want to wear since I bought them. They're super comfortable and still feel so sexy.” 
Hayley, 34D + Medium

“The result is four simple styles produced with premium-­quality cotton and nylon elastane sourced from Belgium and the U.S.”

Pair it with ->

MK, shown here, is a size 34D bra, wearing a size 3 [MK 34D] Pairs perfectly with our Sieve High-Waist Brief in Slate [MK 34D]
Sieve Non-Wire Bra in Slate $60
Rated 4.7 out of 5
543 Reviews
Shawl collars originated in Victorian Smoking Jackets but we coopted it here [Paula S] Slate Icon Robe + Slate Moire Set = best gift ever? The answer is yes. [Paula S]
Icon Robe in Slate $175
Rated 4.9 out of 5
7 Reviews
Sold Out
Jackie is 5'8", dress size 2, wearing a size S in the A-Top [Jackie S] Drop-needle stitch creates a subtle, vertical stripe effect [Jackie S]
Whipped A-Top in White $70
Rated 5.0 out of 5
15 Reviews
Sold Out
Elongated in the sleeve and body lets you style for the length you like Like a silky, stretchy, wispy soft cocoon
Whipped Long Sleeve in White $95
Rated 4.9 out of 5
24 Reviews
Write a Review
average rating 4.7 out of 5
Based on 3 reviews
  • 5 Stars
    2 Reviews
  • 4 Stars
    1 Review
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
Overall
Rated 1 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 4 out of 5
3 Reviews
Reviewed by Megan
Verified Buyer
I recommend this product
Size Purchased
M
How it Fits
True to Size
Height
5'8"
Age
35 - 44
Jean Size
  • 30
Rated 5 out of 5
Review posted

Super comfortable

I was surprised on how comfortable these are. Size guide was helpful.

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Overall
Rated 2 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Halie
Verified Buyer
I recommend this product
Size Purchased
L
How it Fits
True to Size
Height
5'8"
Age
25 - 34
Jean Size
  • 30
Rated 5 out of 5
Review posted

Love love love!!

Super comfy...great fit!

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Overall
Rated 2 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Was this helpful?
Reviewed by Allison
Verified Buyer
I recommend this product
Size Purchased
S
How it Fits
True to Size
Height
5'5"
Age
35 - 44
Jean Size
  • 25
Rated 4 out of 5
Review posted

Great!!

Just sexy enough but still gives you coverage.

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Overall
Rated 1 on a scale of minus 2 to 2, where minus 2 is Hated it, 0 is Meh and 2 is Loved it
Quality
Rated 5 out of 5
Comfort
Rated 4 out of 5
Was this helpful?
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