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.

A fabric made of polyamide fibres, coated with a layer of Teflon, renowned for its extraordinary resistance to adverse external factors. The fabric is lightweight, waterproof and very durable. It is used in the manufacture of specialised clothing and footwear, but also backpacks, harnesses and protectors.