There are two main materials used to make our padding for underwear, SILICONE and FOAM.
SILICONE pads are made of 100% silicone and can last many years with proper care. FOAM pads are made of 100% polyurethane foam is in both our underwear with built-in padding and well as in our removable pads. This material is similar to the foam inside a car seat - over several months or even years (depending on the frequency of use) they may begin to flatten a bit or show some wear and tear. But this is why we offer replacement pads for our panty/pad sets at such affordable prices, starting at just $10.00.