OK so... I don't know what happened to the other shoe but I lost it. Selling as is. They do need a wash which will clean off any residue seen in photos. I do know this specific edition of this model is highly in-demand as a camp or water crossing shoe for John Muir Trail (JMT) or similar thruhiking. That's right.. not the newer versions of these but the original or whatever it is they talk about on the forums. That's what I sought them out for and unfortunately never got to use them due to losing one of the shoes. I do know many of those selling these no longer have the inserts, so perhaps this will be someone's good luck to find the other part to their desired shoes! They are very soft. Please review all photos before buying.