SELENACARE washable pads are made with an innovative ultra-thin, multi-layer fabric technology.  An innermost layer wicks moisture, keeping you dry, followed by an absorptive second layer of cotton which is laminated to the polyurethane layer.  Menstrual fluids are absorbed quickly, with both layers treated with an antibacterial to prevent unpleasant odors and bacterial growth. These layers are microporous for air circulation but prevent liquid from penetrating. A soft outer layer of 100% cotton ensures a comfortable fit, with snap closures.