content: Think how much simpler it'd be if the length of the inner sole was measured in millimeters and how ever many mm's it is would be the shoe size. Because here on the otherhand I've got a pair of size 13's in Adio's and size 10.5 in Vans but the 13's fit tighter than the Van's and are both the same length. Maybe it's all these other factors coming into play but I find it a hard time finding consistencies across different brands.