What is knackig? You usually don't respond to my random physics questions but this is serious. I might buy this and die of Knackig overdose or Knackig poisoning. Or not buy it and be afflicted with Knackig deficiency. Dad or Joseph or Evan or (honestly probably) David. What is Knackig, what is the benefit of Knackig, and what is too much knackig?
And yes, my shoe is starting to fail. My socks are all wet becasue water is coming in from below.