First Line Leakproof 9" Boxer Briefs - Plum-Underwear-TomboyX
Exclusive: First Line Leakproof 9" Boxer Briefs - Plum-Underwear-TomboyX

First Line Leakproof 9" Boxer Briefs - Plum

Regular price $36.00


No leaks, no mess, no worries. First Line is here to keep you dry and on the go (or on the couch). With built-in leak protection for light days and incontinence, you’ll be able to rest, move, and breathe easy. Our trunks feature a floating gusset that can fit a pad with wings for some extra coverage when you need it. And hey — they’re antibacterial and odor-repellent, all while looking and feeling just like your favorite Tomboys. Plus, the outside fabric is also leak resistant for even more protection.

First Line underwear is made with OEKO-TEX® 100 Certified fabrics which are free from chemicals that are toxic to humans including PFOS and PFOA chemicals that have been shown to cause infertility or cancer. Learn more.

  • Fit-tested on all body types, sizes XS-6X
  • 95% OEKO-TEX Certified cotton, 5% spandex
  • Signature stay-put silky soft TomboyX waistband
  • Mid rise fit, 9" inseam
  • Holds 4 tsps of liquid
  • Smooth, durable flatlock seams won’t irritate or chafe
  • Machine wash cold in a mesh bag, line dry overnight. Avoid machine drying.
Measure your chest at the fullest point to determine your size. If you are between sizes use the under bust measurement or size down.

Measure your hips around the fullest part of your hips and bottom while keeping your feet together.  Keep the tape measure parallel to the floor and don’t pull too tight!