Once shell cracks you are usually screwed. if you do not care about pretty-ness you could learn to sew. And that may hold for sometime as long as its not a major stress point. Good simple sewing tutorial: Oh and BTW ebay seller do not "forget" to list this. They do it on purpose for old shell shoes they find. They just wont say anyting and hope someone buys it. If I were you i would try and return it saying the item was misrepresented.