Period. is highly absorbent underwear, designed to absorb your period, so you don’t have to use tampons or pads. It has a four layer towel technology with a special wicking layer, which means that any period blood is soaked up super fast and you won’t have a ‘wet feeling.’ After you’ve used a pair, you rinse them under the tap, throw them in your laundry, then they’re ready to use again.