Oh, by the way, I think I have a pair of Cheng's boots way back when... I stole a pair of insole inserts from old work boots. Cut the heal and toe parts off, contoured the arch support to fit boots, put said cuts insoles on bare feet, slide a sock over it for fit... not bad... weathered pristine Cheng boots using grubby garage floor, used coffee grounds with filter and used tea bags... herbal teas has a range of color... might have to try this on my vest and neck seal... nylon/polyester might be an issue...