From the creators of Thinx, Thinx Teens is a period product that can keep up with you. Thinx Teens Period Underwear looks and feels like everyday underwear, but with built-in period protection so teens can feel fresh, dry, and comfy â no pads, tampons or other disposable period products needed. Thinx Teens heavy flow period underwear features an ultra-absorbent core layer that absorbs up to 2.5 regular pads' worth of flow, while the moisture-wicking top layer draws away wetness and dries quickly....