These are the new coyote brown thermals that are worn with the multicam OCP uniform. They pair perfectly with the level 2 waffle thermal shirt and pants as well as the Polartec level 3 fleece jacket
GEN III ECWCS utilizes an innovative design that reduces bulk, taking up less space, and weighing less than its predecessor systems. Each piece of GEN III ECWCS functions either alone or in concert with other components as a system, thus providing more options for the Soldier and enabling seamless integration with load-bearing equipment and body armor configurations. The Gen III ECWCS design allows moisture to escape and at the same time has water-resistant properties.