One year earlier, the Kaminoans developed experimental Phase II armor worn by ARC Troopers. In some other cases, some clone troopers have created hybrids of their Phase II and I Armors. It was also highly improved, compared to Phase I Clone Trooper Armor, as it had installed controls and communications, as well as an advanced vision within the visor and ammo packs closer together for easier use. The helmet design and body armor of Phase II armor differed greatly from those of Phase I armor. Phase II Clone Trooper Armor was the commonly-used armor worn by clone troopers, after the start of the second half of the Clone Wars.