Robust cargo pants made of sturdy canvas with aramid reinforcement. These pants are reinforced with Twaron on hips and buttocks. An aramid fiber that meets the very strict standards of inspection standards 13594-2 and 13594-4. In the area of abrasion and tear resistance it performs well in the highest categories (Level 1 and Level 2). These pants come with tested Knox Flexiform knee protectors that are easy to put in or remove from the pockets. The position of the protector is adjustable in height. Both the protector pocket and the entire seat are mesh lined for maximum ventilation.