Tex-Care Medical Cast Padding, Rayon, 2" x 4 yds, 12/bg, 6 bg/cs. The viscose fiber is natural in origin, offering properties of comfort and absorbency. The delicate viscose fibers are especially suitable for patients who are prone to excessive perspiration. More absorbent than cotton, it allows moisture to be wicked away from the skin, helping ensure a high level of comfort. This padding is ideal for hotter climates, where natural products with alternative moisture management properties may be preferred to synthetics.