Underpads offer a reliable solution for protecting mattresses or any other undersurface from fluids like urine, semen, vaginal fluids, sweat or other excretions. Underpads are made out of high-quality fluff pulp and SAP (superabsorbent polymer) for the most effective liquid absorbency and to provide patients maximum comfort. Super absorbent fluff pulp, Highly absorbent SAP Breathable Topsheet and Leak Guard, Anti-slip Backsheet Anti-slip backsheets are located in the back, allowing patients use them without fear of dislocation.