I am sure the product mentioned above is great.

I found an alternative 25-30 years ago. Work Force socks. I buy 6 pair and rotate one per day of the work week in my work boots.

They last me about ten years, so I have not worried about a warranty.
https://www.amazon.com/Pairs-Workforce-Workwear-Socks-WFH0090/dp/B00W5S2ZGW

[Linked Image from m.media-amazon.com]

People who choose to brew up their own storms bitch loudest about the rain.