Hole in Pocket

I am constantly getting holes in my pockets due to keys, etc…

Any suggestions beyond the obvious folding and sewing?

Don’t keep keys in your pockets?

Seriously. Would you be able to keep them on a clip on your beltloop or something?

Kevlar fabric?

Leather pockets or pocket liners are a possibility.
Rhino skin?

Keep the keys, etc. in a small case of some sort.