Dermal armour roughness

Belle’s other lieutenant shrugged out of his jacket to show off his
glowing tattoos, and Jensen saw the distinctive rough skin on his bare chest
that indicated dermal armor implants beneath the flesh. He shifted on the
balls of his feet, licking his lips. The first attack would come from him; it
couldn’t have been more telegraphed if he’d been wearing a neon sign over
his head.

- Deus Ex: Black Light, Chapter 2 pg. 28