Yes. The MultiCam variants of the Striker X Combat Pants and Striker HT Combat Pants are 50% Nylon and 50% Cotton Ripstop fabric (nyco ripstop). By comparison, these same pants in plain colours are 67% Polyester and 33% Cotton Ripstop fabric.
Meanwhile, the Monsoon XT Tactical Rain Pants in MultiCam employs a triple-layer waterproof laminate. This material withstands heavy rain and daily wear-and-tear, yet is breathable.