|For the derived statistic, see Radiation Resistance.|
For a cross-game overview of this perk, see Rad Resistance.
“You are better able to avoid radiation, and the bad effects radiation causes. Each level of this Perk will improve your Radiation Resistance by 10%.”— in-game description, Fallout
Each level of this perk will increase one's Radiation Resistance by 15%.
The Fallout manual erroneously states that it increases Rad Resistance by only 10%.