Cutting

Cutting damage (cut) inflicts lacerations, like those caused by an axe or broken glass. Multiply penetrating damage by 1.5. Cutting attacks can inflict blunt trauma and cause knockback.

Cutting damage is not subject to Overpenetration.

Against Flexible Armor: For every full 10 points of cutting damage stopped by your DR you suffer 1 HP of injury due to blunt trauma. This is actual injury, not basic damage. There is no wounding multiplier. If even one point of damage penetrates your flexible DR, however, you do not suffer blunt trauma. If you layer other DR over flexible DR, only damage that penetrates the outer layer can inflict blunt trauma.