Whisper ultra is the result of path-breaking research done by procter & gamble worldwide. Whisper ultra`s special lock-away core is made of tiny agm [absorbent gel material] granules that have the capacity to absorb several times their own weight in liquid. Once absorbed the liquid turns into gel and hence these granules retain and lock wetness within and do not allow wetness to return back to the surface. Whisper ultra is 5 times thinner than ordinary napkins, thus providing the indian woman the benefit of comfort, a sense of freedom and a feeling of not having their periods. Recommended for regular to heavy flow.