Blue goo. White denim. Pool parties. Humans have been menstruating since, I dunno, at least the 1800s, yet no period product has been bold enough to circumvent weird euphemisms and be upfront in its advertising about what the hell a period is. For Flex, a one-of-a-kind menstruation disc, we made it so easy to real-talk about menstruation, even the most unexpected folks could sell our product for us (and sell it well).