From publisher blurb:
Each Gadget Guide in the series takes a look at a particular type of devices in Mutants & Masterminds game terms, putting together the effects and modifiers from the Hero's Handbook to present different a wide variety of gadgets of that type. It also looks at specific concepts related to creating and using those devices in play. The Guide is a catalog of ready to use toys for your M&M game!
Along with weapons, armor and protective gear are some of the first tools and technologies. Heroes lacking invulnerability, intangibility, or superhuman speed may rely on armor and other protective gadgets to survive the dangers of their heroics, and some make armor their primary theme. This Guide looks at all types of protective gadgets, from armor and shields to goggles and gas masks.