Coburn microfiber towels are made of a microfiber which is finer than a strand of silk, allowing the cloth to reach into creases and crevices of the udder for a more thorough cleaning. The fabric does not kill bacteria but has the property of trapping up to 99% of the bacteria and holding it until washed out. It is recommended to wash and dry at 140⁰ F. Compared to cotton, microfiber is softer, more durable, more absorbent and dries faster. Hemmed towels are 12″ x 12″. Packaged in bags of 50. Blue in color.