Have a Zipfit Grand prix and Zipfit Indy on hand to test out the fit. They are both mondo 26.5 (my feet are ~26.75).
I noticed that the cork material in the heel area feels like it's about one cm lower than where it ideally should be, mostly on the Grand Prix. Like it's pinching the base of the heels rather than the cavity area behind the ankle bone.
This is testing it with a very thin footbed inserted too. The thicker SOLE footbed i usually use just exaggerates the issue.
Haven't yet tried the thing where you heat the liner and shell up and allow it to mold. Will this do the trick in shifting the cork material up higher to where it needs to be? I haven't had it on for more than 20 minutes either. Maybe it just needs more time to break in?
It could also be because it was pretty hard to put on and me forcing my foot down into the boot shifted the cork down also.
The heel area on the Grand Prix also feels much harder than the Indy. Like you can really feel the firmness of the cork. It's actually sort of painful right now, but maybe this just has to do with the cork not being properly molded yet.
On the indy, the cork doesn't feel quite as low. The Indy also uses a thicker neoprene material all throughout so the cork feels softer. I think this also means it's slightly less snug than the grand prix. Plus it makes other areas up front feel more cramped so i might have to do more shell punching.
Ideally, I'd like to just go with the Grand Prix if i know i can get the cork to break in. I have very narrow heels/ankles and i can already tell the zipfits are going to do the job better than the intuitions i've used before?
So is this a common issue with zipfits?
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