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| I went to Zum Gluck last year and I have very wide feet. After he measured my feet we went into town while he worked. When we came back the boots were modified. He showed me an original boot (narrow) and the widened ones (my new boots). I don`t know how he did it but I am sure you can expand a shell, Im not sure if thats what we are talking about here. | |
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They put a press into the shell pushing on the part to expand, then use a handle to gradually increase the pressure to a judged amount. Once in place, the boot shell is heated to 'just the right temperature' with a hot air gun, then allowed to cool into its new shape. This can be repeated at several spots on the shell if required.
In general, if you can't get boots that fit properly, I'd recommend going for tighter ones then getting them 'blown out' like this, as long as the amount we're talking about is not too great. Most shops will do this for free if you buy the boots there, although I'm aware of specialist fitting services that will charge you for the privilege rather than selling you the boots.
One point to note is that over time they will tend to revert to their original shape, especially if they're overheated by leaving on or near a radiator or in a hot car in the full sun. So they may become tighter over time, wlthough this would usually be more than compensated for by the boot inner becoming more compressed.
Getting injection-moulded inners is really quite different, and more often used when the originals have given up the ghost than from new (except for top racers, where the whole boot is custom-made to fit). It will be able, to some degree, to compensate for a shell that's too loose all round, but I wouldn't recommend it as a general fix for all. All else apart, they are made to fit the foot _exactly_, and when, for example, you've had them made at the end of one long season, you then try to put them on at the start of the next, you may find, as I did, that your foot has changed shape sufficiently over the summer to render the exact fitting inners completely the wrong shape. Agony may ensue, for quite some time until your feet re-adapt to skiing and start to regain their previous shape.