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.

Fiberfill is a synthetic material, also known as polyester fibre, mainly used as a filling or cushioning material. It is characterised by its lightness, softness and good thermal insulation.