While Phase II was capable of withstanding impacts, pressure, heat and acrid vapors, the armor was vulnerable to a direct hit from a laser blast. In addition to providing its wearer with better vision, the armor plates were lighter and stronger than that of Phase I. Like its predecessor, Phase II was a set of form-fitting white plastoid plates over a black body glove.

As such, Phase II helmets were featured an advanced filtration system, and were also designed to be more comfortable to wear than Phase I helmets. Unlike Phase I, Phase II did not feature an internal life support system, necessitating the use of an external respirator in the absence of breathable atmosphere. It was, therefore, more expensive to produce, costing 3,000 credits per suit whereas Phase I cost 2,000 credits. More advanced than the Phase I clone trooper armor, Phase II armor was capable of supporting more specialized equipment.

Phase II clone trooper armor was manufactured by Kaminoan armorsmiths. Phase II was a redesigned version of clone trooper armor.