From publisher blurb:
For all the many armors, shields, and other defenses available in the Pathfinder Roleplaying Game, every possible one hasn’t been fully covered. While you can just rename many existing defenses in a pinch to align with some new idea or specific cultural item, often times it is preferable to mix and match armor abilities and features into something new. But, how much would it cost? Would that make it light, medium, or heavy armor? What should it weigh? And can you be sure it won’t break your game? Creating New Armor provides guidelines for you to build, balance, and price new mundane shields and suits of light, medium, and heavy armor for your Pathfinder Roleplaying Game.
Extensively bookmarked for your convenience, Creating New Armors is an excellent way to bring new options to your table for all types of classes.