Duct tape over the holes from the inside, then put the liner back in . Those above winter riders are Gaerne Eskimos, bone dry last winter after 2.5 hours in full on slush ride. As I get older my feet have been getting colder, best money I've ever spent on gear. I'm going to look at getting those water proof socks for when it's not cold but I'd rather the shoes weren't soaking wet all day.