Using a customized SLA printing platform, we demonstrate that our resins can be transformed to high-resolution, architecturally complex 3D structures. Because of extreme softness and stretchability of our resins, the printed 3D structures exhibit remarkable dissipative properties. The structures deform easily at relatively low stress (5-40 kPa) but without significant stiffening until a large extent of compression (60% compressive strain). We demonstrate that the soft, elastic, and dissipative structures can protect brain-like gels from impact damage in reducing the severity of impact up to 75%, highlighting the potential applications in preventing traumatic brain injury.