Stormborn
Explorer
In my campaign I have allowed the hides of various monsters to be used to make special articles of clothing with some limited benifits. They are never just for sale, though, except occasionally in truly exotic places like Sigil. Typically how it works is the PCs kill a monster, use Survival or Knowledge(nature) to field dress it. They then take it back to town and find some master craftsman to make it for a price. Green Dragon boots would take care of the acid for you.