Each set of our 5" Round Breast Pads have 1 layer of bamboo which goes against the skin, 1 layer of microfiber for absorbency & 1 layer of PUL which is the water resistant layer, which will help keep your shirts dry.
Other great uses are: Boo boo pads from the freezer, small clean up pads for small children, coasters, makeup remover, on the go cleanup.