tomboyx | Premium Underwear for All Day Comfort. Fit for You.

First Line Period 4.5" Trunks 3-Pack - Black Rainbow Logo

First Line Period 4.5" Trunks 3-Pack - Black Rainbow Logo - Main image
$64.26 $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 (4.8 / 5 · 5 reviews)

Chloe J. ★★★★★

I was skeptical about the 4.5" inseam staying put, but the mid rise fit is perfect under jeans and moves with me during a 10-hour workday. The black rainbow logo is subtle enough that no one’s staring, and honestly, the absorbency for a backup on heavy days has been a game-changer.

Eli P. ★★★★★

These trunks held up through a full workday and a workout without any leaking or bunching, and the mid-rise fit stayed put the whole time. The absorbency genuinely handled my heaviest flow days, and having the three-pack means I always have a clean pair ready.

Olivia ★★★★★

The 4.5" inseam hits that sweet spot where I don't feel like I'm wearing a diaper but still get full coverage for my morning leak. Each pair holds up to 4-5 regular tampons worth, which got me through a whole workday without a change of plans. The black rainbow logo is a fun touch under jeans, and t

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