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.

It provides a good fit and a smaller contact area, as well as ventilation. Fresh air constantly circulates through the ventilation channels. At the same time, the rucksack is always kept close to the body.