system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] how much protection would Superman's suit offer to a non-Kryptonian?
gpt
Action Comics #0 shows a child (wrapped in the cape) in an abusive home attempt to be killed by his father. The cape breaks the knife upon impact. It's probable that it is very nearly as indestructible as he is.

So a lot.