Whats great about Supersorb is its air-permeability. Air-permeable layers allow air to flow through, promoting healthy skin and helping prevent rashes and infections. eaturing maximum absorbency, extra-strength and air-permeability, these -inch all-in-one-inch under pads reduce the need for multiple under pads. 15 to 2 times more absorbent than our heavy under pads air-permeable for patients with high risk of skin breakdown soft, cloth-like top sheet promotes healthy skin. Features: 15 to 2 time