Shoe Size Question

I was wondering if there was any data on feet/shoe sizes and in what ways footwear companies use this data besides making the appropriate number of certain sized shoes.

Also, when you go about designing a shoe/sneaker how does the foot size affect it? For example if you design a cross-training sneaker for a USA size 10 man, is it scalable up to a size 16? In general are the components simply scaled up proportionally and everything is fine and dandy?

men’s shoes are generally designed based upon size 9, and women’s shoes size 7, then that design is “graded” to other sizes and widths. some types of shoes tend to sell mostly in larger sizes so on occasion ive been asked to design around a size 11 for things like work boots or basketball shoes. Ive also worked on kids shoes that where take downs of adult versions. that can be difficult because you must simplify the pattern to be made in such a small size, with out loosing the essence of the adult pattern.

Thanks for the reply crew.

One thing that I never really understood is why larger sized shoes/clothes don’t cost more when they use more fabric/material than smaller sized shoes/clothes. How does one determine the cost when the profit margin is smaller for larger sized products and larger for smaller sized products?

It averages out, hence the sample size costing basis. Normally orders are highly concentrated around sample size or close to sample size through a normal distribution curve (ie. bell curve). Thus figuring for costing by sample size takes into account the outliers at both end (larger sizes that may cost more and smaller sizes that may costs less).

As mentioned in categories where the average size is larger most likely costing would be adjusted to reflect that “average” size. For example if you were doing footwear or apparel only targeted to a +size market, it would be very likely that your costing base would use a larger size.