In Shining Armor

In Shining Armor is a perk in the Fallout: New Vegas add-on Dead Money.

Effects
The Courier gains +2 DT against qualifying weapons(see bugs) while wearing reflective helmet or eyewear and an additional +5 while wearing:

Behind the scenes

 * The name of the perk is a reference to the phrase "A knight in shining armor."
 * The +2 DT effect for wearing reflective eyewear is handled by a separate, hidden perk.

Bugs
This perk does not provide any DT boost because the parameter that is referenced when checking the skill type of enemy weapons is "Energy" instead of "EnergyWeapons". This means that the function "IsWeaponSkillType" will never return a value that can activate the perk effect, because there is no weapon skill called "Energy".
 * This bug was fixed in JSawyer.