3e SRD:Inertial Armor
From D&D Wiki
|This material is published under the OGL|
Inertial Armor [Psionic]
Prerequisite: Reserve power points 1+.
Benefit: While the character retains 1 or more power points, his or her mind automatically generates a tangible field of force that provides a +4 armor bonus to AC. Unlike mundane armor, Inertial Armor entails no armor check penalty or speed reduction. Because inertial armor is composed of psychokinetic force, incorporeal creatures cant bypass it the way they do normal armor. The inertial armor can be invisible or appear as a colored glow, at the characters option. The armor bonus provided by Inertial Armor does not stack with the armor bonus provided by a shield or regular armor.