Tena Underpads Feature soft, vented interior liner that is non-irritating to skin; soft, resistant outer layer for patient comfort. Quilted mat enhances fluid dispersion. Items marked with a star have super absorbent polymer providing maximum protection and keeps moisture away from skin. Features: Non-irritating to skin Soft, resistant outer layer Soft, vented interior liner *Super absorbent polymer 350 Regular (17" x 24") 300 25pkg 352 Regular (23" x 36") 150 25pkg