First Line Period 4.5" Trunks 3-Pack - X= Black

$67.32 ~~$102~~ In stock

Category: multipacks

Your signature briefs with absorbency for periods, pee, sweat, whatever. So you can, you know, feel like yourself.

Mid rise fit, 4.5" inseam
Absorbs up to 4-5 regular tampons
Room for a backup liner or winged pad on your heaviest days
95% Cotton, 5% Spandex
Gusset: 89% Polyester, 11% Spandex
Inner Floating Gusset: 91% Polyester, 9% Spandex
PFA-free & OEKO-TEX® Certified
Machine wash & dryable just like our OG cotton undies
Not eligible for Love at First Wear

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

David S. ★★★★★ Sep 6, 2026

These are the first pairs I’ve found that actually hold up through a full workday without that damp feeling creeping in. The 4.5” inseam sits perfectly without riding up, and I’ve washed them three times already with no bunching or loss of absorbency.

Alexander ★★★★★ Sep 2, 2026

I was skeptical about the mid-rise fit with a 4.5" inseam, but they don't ride up at all during a full workday. Wore them through a heavy flow day plus a sweaty commute, and the trunk style kept everything in place without feeling like a diaper.

Mia Z. ★★★★★ Sep 1, 2026

The absorbency is the real deal—I’ve worn these through a full workday and they handled everything without a hitch. The mid-rise fit is comfortable enough that I forget I’m even wearing a backup layer.