Microfiber is a type of synthetic fiber that’s commonly made up of polyester and a polyamide. The blend is typically 80% polyester and 20% polyamide, but sometimes you’ll find it in a 70/30 blend. There is very little practical difference between the blends.
The strands in microfiber are incredibly tiny, and structured in a way that allows dirt to get trapped within the fibers, rather than just on the surface, as with cotton. This prevents dirt from simply sliding across the surface you’re trying to clean, risking scratches and other damage. This is why the instructions that come with glasses, screens, and other delicate surfaces demand the use of a microfiber cloth for cleaning.
There’s also another benefit from the structure of these fibers: microfiber towels are much more absorbent than regular cotton or wool fibers, allowing you to use the same towel for longer when cleaning up spills or drying a surface.
Usually, a microfiber towel can be washed for more than 1000 times, that is why microfiber towels are so special.