A shield is a type of Gear equipped into a hand slot. Shields typically provide a bonus to the base Reaction in combat, usually by boosting the Miss entry.
Training is required to equip Shields. Shields comes in light and heavy classifications; training in the labeled classification is required to equip a Shield. Shield training is typically provided by a Class.
Shields can be enhanced by adding an Enchantment. These rarely modify the base Shield text, instead providing new properties or options. Shield Enchantments usually lack Magic values.
For more information, see Player's Guide Chapter 7: Gear and Wealth.