Yup, salt and neatsfoot compound. And they are fine, honest!!!!!
I wonder what a "neat" is, and why it only has oil in it's foot?
WYSIWYG, are you worried about the skin or the washing machine? I use it to dye stuff, wash anything that I can get in there, and clean up my trainers. It's accustomed to hard work!!!!
Cheers, Bron.