Yoni Period Proof Underwear is reusable and easy to use. You can wear it, wash it at the washing machine and wear it again. Depending on your flow, it can totally replace the disposable products like liners, pads and tampons or it can be used as back up by using it in combination with tampons or a cup. For first timers, we recomend trying Period Proof Underwear at night to get use to the feel of wearing an underwear for your period and to determine how much coverage the underwear gives to your flow. The ultra-thin absorbent layer is made from microfelt followed by a leak-proof layer to keep you dry and protect you from leaking. Take a look at our Period Proof Underwear page to learn more.