The cestus is a glove of leather or thick cloth that covers the wielder from mid-finger to mid-forearm. The close combat weapon is reinforced with metal plates over the fingers and often lined with wicked spikes along the backs of the hands and wrists.
Benefit: While wearing a cestus, you are considered armed and your unarmed attacks deal normal damage. If you are proficient with a cestus, your unarmed strikes may deal bludgeoning or piercing damage. Monks are proficient with the cestus.
Drawback: When using a cestus, your fingers are mostly exposed, allowing you to wield or carry items in that hand, but the constriction of the weapon at your knuckles gives you a –2 penalty on all precision-based tasks involving that hand (such as opening locks).