i got those Footprint KingFoam swanski:
i tried them in vans Pacquard, Fallen Mission and Lakai Linden so far, all size 11, insole size 11-11.5. for slimmer shoes it looks as if they wouldnt fit, but they mold themselves in there perfectly, just cram that fucker in there and you are good.
at first its weird, especially when i put them in my Fallen because the stock insole is so thin (aka useless) so it feels as if you have a new shoe that has little boardfeel, but thats not true (the "no boardfeel" part, not the "new shoe" part...)
the arch support is amazing, but feels so weird in the beginning, as if you would be rolling your ankle easier or sth, at least if you are not used to anything else but skateshoes. it kinda feels like having perfectly skateable runningshoes with a lot of boardfeel.