From Pathfinder Lost Omens The Mwangi Expanse, which isn't enabled.

Protective Claws

FEAT 5

Prerequisites vicious goloma heritage

The chitin on your claws is so hard you can defend against attacks with them. Your claw unarmed attack from the vicious goloma heritage gains the parry weapon trait.

Pathfinder Lost Omens The Mwangi ExpanseOGL