This is a simple leather corselet, armor for the stomach, chest, and back.
It is cheap to make and is normally worn by common foot soldiers.

ARMOR CLASS STEPS: 1*
BULK: non-
BASE WEIGHT: 10#
MOVEMENT: 12
COST: 5 tael (50 sp)

* This armor does not cover the backside at all. Attacks from behind are treated as against AC10.