The clone trooper armor known as insulated armor was engineered to defend against extreme temperatures, whether hot or cold. It shared design similarities with the armor utilized by the 21st Nova Corps. Different versions of this armor were employed by specialized units like clone flametroopers, who donned MK I and MK II "Hotspot" insulated armor, and by clone cold assault troopers, equipped with HT-77 Cold Assault Armor.