I did not look after the Darned Tough; I walked the heels out of these right away, in boots that hardly ever experienced that problem with any of my other socks. PaPa K claimed: I worked at a shop that gave me a discount on products which includes darn toughs. https://dog-dog-toys30794.hazeronwiki.com/7530917/the_definitive_guide_to_pokémon_socks