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TomboyX First Line Stretch Cotton Period 4.5-Inch Trunks, Main, color, All Black
TomboyX First Line Stretch Cotton Period 4.5-Inch Trunks, Alternate, color, All Black

First Line Stretch Cotton Period 4.5-Inch Trunks

TomboyX

Regular & Plus Size
$29.00 – $34.00Current Price $29.00 to $34.00
Color: All Black
Size
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Details & care

Made from comfy jersey, these period-proof boxer briefs feature triple-layer construction for built-in leak protection on the days you need it.

  • Holds 4 teaspoons of liquid
  • Floating gusset accommodates a pad with wings
  • Flatlock seams eliminate chafing and irritation
  • 95% cotton, 5% spandex
  • Machine wash, line dry
  • Imported
  • OEKO-TEX®–certified materials free of harmful substances
  • Item #6118451

Size info

  • Use hip measurement to detemine size.
  • XS=33-34", S=35-37", M=38-40", L=41-43", XL=44.5-46.5", 2X=48-50", 3X=51.5-53.5", 4X=55-56", 5X=57.5-59.5", 6X=61-63".

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Free shipping. Free returns. All the time. Purchases made online can also be returned or exchanged at any Nordstrom store, free of charge. Read more about our shipping & returns policies.

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Reviews

(344)
4.1 out of 5
Write a Review

Most helpful positive review

Jan 24, 2026
Comfortable and absorbent
Very comfortable and absorbent. Happily surprised there is still the ability to use a pad with it.
MacT
Verified purchase
Reposted from TomboyX

Most helpful critical review

May 5, 2025
Wedgie Issue
Liners don't go far enough back. Making it very uncomfortable.
....
Verified purchase
Reposted from TomboyX
TomboyX response
We appreciate you sharing this feedback with us. We hear you and are further iterating with our First Line collection to strike an ideal balance between comfort and function. Your thoughts will certainly help to inform future designs and we're grateful for you giving this option a wear.
5 stars
63%
4 stars
13%
3 stars
9%
2 stars
8%
1 star
8%
Sort by Most Helpful
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MacT
Reposted from TomboyX
Verified purchase
Jan 24, 2026
Comfortable and absorbent
Very comfortable and absorbent. Happily surprised there is still the ability to use a pad with it.
sophialamb
Reposted from TomboyX
Verified purchase
Dec 5, 2025
Ok but not very comfy or secure feeling
I like the material, but the padding on the crotch part is really big and bunches up and doesn't really sit well.
TomboyX response
Thank you for sharing these thoughts with us. The experiences of our customers with each of our designs is so pivotal to drive iterations forward. Please keep a lookout for a new First Line release into the first few months of the new year! Our team will be reaching out to you directly and we appreciate your insights.
Anonymous
Reposted from TomboyX
Nov 18, 2025
Could be awesome with some fixes.
Ok, so the boy short version is my go-to only because the long version, which I would prefer, actually pulls the pad I wear over the gusset, away from my body, constantly. Please integrate the absorbent layer into the fabric so this won’t happen. In addition to that, the giant gusset in the long version is way too bulky and sticks out. I don’t mind the larger gusset, but it needs to be more practical. One more thing, the shorts part of the underwear would be made with some type of absorbent material because there are many times I will bleed over one side or the other and then I trash my pants and potentially the furniture I’m on at the time.
Klsy
Reposted from TomboyX
Verified purchase
Oct 24, 2025
Loving these!
My partner gave me a pair they no longer use and I’m so in love. Had to buy more! Best menstrual undies I’ve tried out of 4 other brands. So comfortable and cozy. Easy to clean.
Klsy
Reposted from TomboyX
Verified purchase
Oct 24, 2025
Loving these!
My partner gave me a pair they no longer use and I’m so in love. Had to buy more! Best menstrual undies I’ve tried out of 4 other brands. So comfortable and cozy. Easy to clean.
Jules9
Reposted from TomboyX
Verified purchase
Oct 24, 2025
Improved from originals
Fit is the same as my regular underwear with tomboy. 5'4" and 160 athletic build and I wear medium. The larger, more absorbent pad is great and so much nicer than the originals of this style. Very comfortable as all their materials are. Easy to wash and care for. Highly recommended
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First Line Stretch Cotton Period 4.5-Inch Trunks
TomboyX
$29.00 – $34.00Current Price $29.00 to $34.00