The most common materials are ABS plastic, Polyurethane (PU), and Carbon Fiber. ABS plastic is the industry standard for its excellent impact resistance and cost-effectiveness, making it ideal for mass-market retail. PU offers superior flexibility and fitment, reducing the risk of cracking during installation. For high-end luxury builds, Carbon Fiber provides unmatched lightweight properties and a premium aesthetic, though at a significantly higher price point. Ensure the supplier uses injection molding rather than vacuum forming for better dimensional stability.