Damage Reduction (Ex)

At 5th level, a stalwart defender gains DR 1/—. At 7th level, this DR increases to 3/—, and at 10th level it increases to 5/—. Damage reduction from different sources does not stack; however, a stalwart defender of 5th or higher level that gains DR from armor (but not from any other source) increases his class-based DR by the value of the armor’s DR. Thus a 7th-level stalwart defender wearing adamantine full plate (DR 3/—) has DR 6/—.