Has anyone tried this? I want to replace the seat fabric for my uppababy vista because my first child made it pretty grubby in ways that are tricky to clean (like crumbs and raisins and stuff INSIDE the seat, where the harness attaches 
). It’s very hard to buy replacement fabric for the 2014 model though. Has anyone tried to replace with fabric from a later model? Is there any reason it wouldn’t fit?