Underpad, Pmax Lt, 34X36, Poly, Lamin, 1DozPerforMAX LT Poly Laminate Underpad, 34" x 36", 2 DZ Breathable polyurethane film helps block fluid, but allows moisture vapor to escape, creating a cooler, drier and more comfortable patient environment Swift Dry top layer wicks fluid in quickly and moves it to the center core Super absorbent core disperses fluid throughout the pad so the top feels dryer quicker Bonded construction thins the pad for less bulkiness with no decrease in absorption Lays