Norrona D3O Removable Back Protector

D3O removable back protector for the Skibotn 15L pack and the Fjora 18L pack. D3O core patented technology is based on non- Newtonian principles. In standard conditions, the polymer chains on a Non- Newtonian fluid flow freely, allowing the material to remain soft and flexible but on impact, they lock together dissipating the impact energy, reducing the force transmitted. This event lasts milliseconds; the polymer then instantly returns to its flexible state. The D3O patented technology incorporates this Non- Newtonian into other polymers for a rate sensitive solution.