Originally Posted by dbhdnhdbh
Can you say something about "arch length?" This would appear to produce substantial variation in the length of shoe beyond the toe if one fits to arch rather than overall foot length?
Arch length doesn't have anything to do...for good or ill...with the shoe length or the SLL (standard last length). But it has everything to do with proper fit.
Ideally, a shoe will be fit to the customer's unique arch length...also known as "h
eel to b
all" length. Since some people have short toes and some have long toes, the H-B is really the only reliable datum that can determine the proper size of shoe for that foot.
Of course there are industry accepted "standards" for the relationship between the H-B length and the SLL. But in use, this varies from one manufacturer and/or one model of last to another. And is often based more on perceived fashion trends or even economic considerations than on sound anatomical principle. Some people have H-B measurements that don't even begin to correlate to with industry standards. Compounding that is the fact that it is the rare individual who has two feet that are exactly the same length or have the same H-B.
But the accepted procedure for determining foot size--a measurement taken from the back of the heel to the end of the toe (also known as the "stick") is, at the end of the day, deeply and fundamentally flawed.