We’d like to introduce you to the world's first collapsible cup that folds flat and fits into a small protective case! You can toss it in your backpack, purse or pocket, and you're good to go. Then, when you need it, it can be popped open for up to 8 hours of non-stop protection. Hassle-free. Size B. This size is recommended for women who gave birth or for those who have a weaker pelvic floor. It’s perfect for those with the medium flow, too. 100% medical grade silicone Covers light to medium flow Collapses flat into a handy protective case Up to 8 hours of hassle-free protection Reusable and eco-friendly period solution