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Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack

Sieve Brief Custom 2-Pack in

Sieve Brief Custom 2-Pack

4.5
Rated 4.5 out of 5 stars
475 Reviews

Ultra low rise. Honeycomb micromesh.


Sieve fan? Meet your matching bottom and feel all sorts of pulled together.
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
XS S M L XL XXL
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack
Sieve Brief Custom 2-Pack

Free U.S. shipping on orders over $100. Easy returns.

Fit

  • Size Chart
  • 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
  • A caramel-y sunrise desert sands affogato tone
  • 74% Polyamide (Nylon) 26% Elastane (Spandex)
  • 100% Cotton gusset lining
  • Wash on delicates/cold, tumble dry low

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
View full details
4.5
Rated 4.5 out of 5 stars
Based on 475 reviews
475 reviews
  • Laura F.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 45 - 54
    Jean Size 2
    46 minutes ago
    Size Purchased S
    How it Fits True to Size
    Age 45 - 54
    Jean Size 2
    Sieve Brief in Buff
    Reviewing
    Sieve Brief in Buff
    Rated 5 out of 5 stars
    Great fit and comfort

    Finally a brief that fits great and feels comfortable.

  • Elizabeth B.
    Verified Buyer
    Size Purchased M
    How it Fits True to Size
    Age 35 - 44
    Jean Size 6
    1 week ago
    Size Purchased M
    How it Fits True to Size
    Age 35 - 44
    Jean Size 6
    Sieve Brief in Buff
    Reviewing
    Sieve Brief in Buff
    Rated 5 out of 5 stars
    Very comfortable and classy

    I love how classy this looks while still being comfortable.

  • John R.
    Verified Buyer
    Size Purchased S
    How it Fits True to Size
    Age 35 - 44
    Jean Size 2
    1 month ago
    Size Purchased S
    How it Fits True to Size
    Age 35 - 44
    Jean Size 2
    Sieve Brief in Slate
    Reviewing
    Sieve Brief in Slate
    Rated 5 out of 5 stars
    Corene

    Comfortable and supportive

  • Jennifer S.
    Verified Buyer
    Size Purchased XL
    How it Fits Runs Big
    Age 45 - 54
    Jean Size 31
    1 month ago
    Size Purchased XL
    How it Fits Runs Big
    Age 45 - 54
    Jean Size 31
    Sieve Brief in Buff
    Reviewing
    Sieve Brief in Buff
    Rated 5 out of 5 stars
    I bought the wrong size but....

    I think I bought a little too large but the quality is off the hook; the fabric is solid; it's the perfect basic. I'm newly into menopause by six months so of course the minute I put on the brand new expensive underwear that I invested in what does my body do? That's RIGHT - it has a period. I was so surprised and astounded; but I was able to rinse these off in cold water with a tiny bit of stain spray and it all came out just fine which is important for us girlies - we can't always make the perfect calendar call. Super high quality... I give them a mental four because my fit is poor because I bought the wrong size but if I had sized down it's definitely a five.

  • Michael D.
    Verified Buyer
    Size Purchased M
    How it Fits True to Size
    Age 45 - 54
    Jean Size 31, 32
    2 months ago
    Size Purchased M
    How it Fits True to Size
    Age 45 - 54
    Jean Size 31, 32
    Sieve Brief in Black
    Reviewing
    Sieve Brief in Black
    Rated 5 out of 5 stars
    Perfect fit!

    I have nothing but good to say about this brief. It would be great if they provided more coverage on the underside. However, my autonomy is a little different than the average customer. I have tried hundreds of briefs, bikinis, boyshouts, etc, and these are the are the hands down winner. The cotton sting bikini are perfect for my spouse and the sieve bra is unbelievable perfect. In my opinion Nrgative is without competition! Thank you for the innovative and wonderful products!

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Detail view of Sieve Brief Custom 2-Pack for sizer