Originally Posted by bourbonbasted
Interestingly there are some shirt manufacturers that produce on a 32/33 basis with the understanding that once the shirt is purchased they will tailor the length accordingly. So if you wear a 32.5 then you buy a 32/33 and they take it up a bit. Sid Mashburn, for instance, sells shirts with these measurements and performs alterations right after you purchase if you so choose. The alterations are included in the price of the shirt.
I wasn't aware that Sid's shirts were tagged like this, but his shop is clearly the exception as they have outstanding in-house tailors and are all about fit.
Originally Posted by js4design
This. Brooks Brothers factory line (346) uses this type of sizing.
This is more to my original point of cheaper, sloppier manufacturing - the main line BB has more exact sleeve measurements. I am not sure I buy the bit about the buttons.