The Cortex is the main inside layer of the fiber that composes 90% of
the fiber mass. Because of the amazing cable-like strength of the Cortex
each wool fiber is so elastic and resilient that it can be bent over
20,000 times without breaking or damaging the fiber. When you think
long-lasting durability, think Chemical Guys Wool Dusters.
The Cuticle layer is the outer part of the wool fiber and is composed of
hundreds of microscopic, overlapping scales. Tiny pockets between the
scales naturally trap and hold dust particles. This amazing feature has
made Chemical Guys car dusters famous for their dust-grabbing ability.