Why Are Deuter Aircontact X Backpacks so Heavy?

https://outdoorsfaqs.com/why-are-deuter-aircontact-x-backpacks-so-heavy/
Deuter has launched three backpacks in its new Aircontact X series. They include Deuter Aircontact X 60+15, Deuter Aircontact X 70+15, and Deuter Aircontact X 80+15.

All of them weigh over 3 kg, more precisely 3.10, 3.18, and 3.37 kg, respectively. So what makes them so heavy? Well, there are some really good reasons for such a weight.

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