This is the Leah thong: a light-as-air, microfiber style that's perfect for your light flow days. They have a built-in liner with dry fit function that's leak-proof and absorbent (up to 5ml), so you can wear them with peace of mind knowing you're protected. They're also certified PFAS-free by external labs, so you can feel good about what you're wearing. (Available in sizes XS-4X)