Star Wars: KotOR II Equipment Database: Item Details
  Environment Underlay Mark IV
Template: u_a_unde_19
Tag: u_a_unde_19
Type: Armor Upgrade (Underlay)
Value: 9925
Special Properties
Upgrade Item, Armor and Robes
Damage Immunity: 30% vs. Cold, 30% vs. Fire
Damage Resistance: Resist 5/- vs. Cold, Resist 5/- vs. Fire
Underlay can have a variety of effects on the armor to which it is applied. The modifications require a workbench with adequate tools and armor of high quality marked as upgradeable.
• This item is either very common or randomly placed throughout the game.