Holeproof brand socks aren’t really holeproof. They get holes just as much as any other brand of sock.
Over the last couple of weeks, I’ve done something of a purge of socks with holes in the toes. I had plenty, and I have a sneaking suspicion that many of them were Holeproof brand.
I didn’t even keep any as “emergency socks.” Sometimes you just have to be ruthless (and hope you have enough new ones to cope).