I can say from personal experience that the sizing for Aldens vary quite a bit, depending on the last. Also, dont forget, it can depend on the leather. A shoe made from cordovan leather will take the shape of the last differently than the same shoe in calf. From my own dealings with Alden I can offer this example: Cordovan leather chukkas, barrie last, 11C Calfskin chukkas, barrie last, 11D Black Cordovan leather lace up high boots, trubalance last, 11E Black cordovan leather chukkas, 10.5 D Tan calfskin oxfords, plaza last, 11E. Not only will different lasts feel and fit differently, but often times the same model shoe, on the same last, might feel and fit differently. Shoes arent metal slugs, stamped out by a machine. They vary, each shoe feels different. Another example - I own 2 pair of Edward greens in the 606 last. Same size, same model, same leather. One pair pinches my toes, the other doesnt. Why? who the hell knows, but its true. I dont know if the shoe experts on here will disagree, and if they do, I defer to their judgement, but to me its an exercise in futility to ask a question about how a shoe fits without trying something on.