This is purely a guess. I would be careful with comments like that if you have zero proof. How should shoes come in varying sizes if the lasts used to make them are identical? Sure, different designs and materials might behave differently on our feet, but that is not the shoe makers fault. It's the lack of knowledge of the customer that is cause of the problem. To me it is much more likely people don't know about the characteristics of their feet. Instead of doing the obvious, going to a store to see and feel the shoes they are interested in first hand, they rely on opinions of people on the internet without having proof those people actualy own a pair and have the slightest clue what they are talking about. After all, even if those people say the truth, the fit of shoes on other peoples feet is next to no help in determining how a pair of shoes will fit you. Have a look at the numerous times people post about their new RTW shoes being a "perfect fit" or how their new shoes fit "like a glove". Nonsense if you can't even find a single crease in the leather uppers in the pictures shown of the shoes because they have never been worn. Also, while sufficiently good for most of us, a RTW shoe never will be a perfect fit. People are impatient and feel the need to order shoes from makers at the other end of the world because SF bandwagon tells them to. Later on they are too afraid to admit a procedure like that is very likely to cause problems and to at least stand up like a man for the fault they have done. Instead people whine about additional costs that are a vanishingly small fraction of the products worth, while poor Vass, being too kind hearted, will remake the shoes free of cost even if the initial pair is perfectly fine from a shoe makers perspective. One would guess people able to spend hundreds of Euro on a pair of shoes were mature enough to have some common sense. More often than not one is prooved wrong. I am not at home for this weekend. I can do so if you like me to. Am I right you mean the outsole measurements?