Abstract: Protective structures that may be used in various protective gear items, such as helmets and the like. In some embodiments, the protective structure may comprise a layered structure having three distinct layers. The various layers may be selected, arranged, and configured to provide for improved protection at multiple velocities, such as high velocity impacts and low velocity impacts. Some embodiments may also, or alternatively, be configured to provide improved protection and/or durability for multiple impacts at the same portion of the helmet over time.