I purchases 4 pairs of the leakproof underwear- boyshort, cheeky, bikini styles. They are not leakproof. On a moderate flow- they last about couple hours before seeing it leak on the sides. That is because the absorbency pad is not all the way to the edges. I felt bummed for paying $100 to try but reasoned they still work on light days and when on the last couple days of your cycle. Odor control is next to none and so I felt the need to change quarter/mid day if needed. Will reduce my light pad usage but can't count on for overnights. They do fit comfortably. That's about the only good thing.