Star Wars: KotOR II Equipment Database: Item Details
  Durasteel Underlay Mark IV
Template: u_a_unde_24
Tag: u_a_unde_24
Type: Armor Upgrade (Underlay)
Value: 19685
Special Properties
Upgrade Item, Armor
Defense Bonus: +4 vs. Bludgeoning, +4 vs. Piercing, +4 vs. Slashing
Dexterity: -3
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.