Vtg Sorel duck boots

Vintage SOREL rain duck boots MADE IN CANADA Not sure if there’s still a size on these but I typically wear a 7-7.5 in hard toe sneakers and boots & these fit well w/ room enough for a decent boot sock on *(see measurement taken of insole for sizing comparison purposes) Overall boots are in Very Good Used Condition. Main issue - felt lining started to deteriorate & separate from tongue (see pic). More so on one boot. Can’t say what the best fix would be, just that it doesn’t seem like something that would be too difficult/expensive to either diy fix or take to your local cobbler/shoe repair Only other flaw of note is what appears to be a mend on one of the heals… or perhaps a it’s a stain, a factory defect🤔.