One pair of FLUX Undies will last at least 3 years.
LunaUndies will last between 3-5 years.
One pair of WUKA lasts up to 25 washes.
THINX pants should last 2 years.
Modibodi pants last between 6 months – 2 years.
Of course these all depend on you taking good care of your period pants and reading the instructions!