The DWR coating makes the fabric water repellent, so that water forms droplets on its surface and runs off instead of soaking in. This protects the fabric from getting wet quickly, providing greater comfort in wet conditions, but does not guarantee full water repellency.

Analysis of the way the human body regulates temperature and the amount of perspiration secreted during exercise has led to the development of Body Mapping. It involves the use of special materials and technologies in the manufacture of sportswear to improve performance in specific areas of the body, to ensure dryness and comfort.