Similar to Stark's earlier Armor, the Mark III Stealth unit was also specifically designed to combat the Black Panther's anti-metal vibranium claws – it is composed entirely of advanced composite ceramics and experimental bio-neural gel-pack circuitry, fused with a kevlar-like polymer and backed by optical fiber networks; all of which comes down to an armor which was invisible to electronic detection systems as well as the naked eye, even the Black Panther's. Although the development of Stark's new cloaking technology for the Mark 25 "S.K.I.N." armor probably rendered the Mark III unit's stealth technology obsolete, the Stealth armor is nevertheless an effective weapon against opponents such as the Black Panther and Magneto because of its plastic/ceramic design.