CF: Natural Armor

You have naturally tough hide, and can choose to use such as your protection of choice.

You can set your AC to 10 + 2 x DEX / Dexterity or CON / Constitution (your choice) + Half-Proficiency. This AC counts as being unarmored, even if you choose to wear wearing armor, though you gain no benefit (magical or otherwise) from the armopr you wear.

A shield's benefits apply as normal while you use your natural armor.