How do spine protector back packs work? Are they a scam?

I recently read an article about Point 65 Boblbee GTX backpacks being the most protective spine protector on the market with CE 2 certification. But when I try and found out what makes it so safe, there is no information as to what materials or technology being used.Compared to viscal elastic armor like D30 and Seesmart, the companies advertise how the armor is made and how it works.On paper, the bag is great because it offers functionality and luggage but it gives me a DMACH bag feel where it looks cool but doesn't do jackNot hating, just asking a curious question via /r/motorcycles https://www.reddit.com/r/motorcycles/comments/fb4ro8/how_do_spine_protector_back_packs_work_are_they_a/?utm_source=ifttt