Standard non-specialized safety shoes are required to have what feature?

The correct choice highlights the requirement that standard non-specialized safety shoes must have toes that meet specific testing requirements. This feature is crucial as it ensures that the shoes provide adequate protection to the footwear's most vulnerable part—the toes—against potential hazards in the workplace, such as falling objects or crushing injuries. Safety shoes are often tested to meet standards set by organizations like ASTM International, which stipulates performance specifications designed to protect workers.

In contrast, other options do not align with safety standards. For example, a shoe having the same design as normal street-wear shoes does not imply it meets the necessary safety criteria. Additionally, stating that safety shoes are only available in one style limits the variety needed to accommodate different work environments and personal preferences while still providing required protection. Lastly, compatibility with metatarsal guards is essential for certain applications, meaning that safety footwear should ideally accommodate additional protective features rather than being incompatible with them.