Balance comes from layering. Start with a core that absorbs kinetic energy—ceramic or composite plate that keeps the weight low. Surround it with a flexible mesh that channels impact forces to the edges, so the interior feels less rigid. Add a small vibration‑damping layer, like polymer foam, to absorb shock so the crew doesn’t feel every hit. Keep the bulk at the periphery; that keeps the interior clear for movement. Finally, run a quick field test with a human model to check for any pressure points. Safety isn’t just about stopping bullets; it’s about letting people breathe and move.