Based on the Cougar® 4X4, the ISS is fitted with a new, integrated independent suspension system that gives the Cougar® ISS increased cross-country mobility in even the most demanding environments. Even in the heaviest load configurations, it matches well with the most severe mission profiles. With its four-man crew compartment and scalable protection, it can be used for the same missions as the 4x4, all while extending the effectiveness of the warfighter.