Evangelions can apparently be outfitted with several different sets of armor "equipment":
In the Show
B Type Equipment
Standard Evangelion armor. Unsuited for use in combat underwater, or in extreme conditions.
Used in Episode 10; a giant diving suit filled with coolant tubes which allows an Eva to be lowered into the magma of an active volcano, serving to protect it from extreme heat and pressure. Used in conjunction with a pressurized plugsuit for the pilot.
In other Media
Originally designed for the Neon Genesis Evangelion 2 game, it is briefly reused in ANIMA. Resembles an ornate, if bulky samurai armor suit which the Eva wears, sort of copying the ornate styles of armor from other anime series.
Although the Eva lose agility due to the weigh of the armor, it compensated by the armor's ability to deflect the A.T. Field in unconventional ways, enhancing defensive and locomotive capabilities.
This article bears the unpleasant designation of "Stub." This is a Bad Thing. Provide a great service to NGE fan-geeks everywhere by making it awesomer!