What type of material is commonly used for making arm guards?

Arm guards are commonly made of leather due to its durability and flexibility, which provides adequate protection while allowing for a natural range of motion. Leather is an ideal material for archery equipment because it can absorb shock and resist wear, making it effective in safeguarding an archer's forearm from the bowstring upon release. The comfort of leather also plays a significant role, as it conforms well to the body, ensuring that archers can maintain their focus without being distracted by uncomfortable equipment.

While other materials like plastic, wood, and fabric have their applications in various archery equipment or accessories, they do not provide the same balance of protection, flexibility, and comfort that leather does for arm guards. Plastic may be rigid, wood can be heavy and less fit to the shape, and fabric may not offer adequate protection against the impact of the bowstring. Thus, leather stands out as the most suitable choice for crafting arm guards.