2021 Thinx Review: Do Thinx Really Work? Why Do They Not Leak?

Here is a video I created about how effective think period underwear is! It is supposed to hold up to 2 tampons worth of liquid (about 10 ml). I actually used 15ml in the video. As you can see, it didn’t leak! Three out of the four layers of the fabric in the gusset part (in your crotch) are made to absorb liquid and prevent leaking. They work great!