Hmmm, I've been researching the Maestrale's lately and came upon the Scarpa sizing chart on their North America site http://www.scarpa.com/scarpa/control...ourceId=700076
It has some glaring differences than the one you linked from Backcountry. Namely I can see that a US mens 11 is a mondo 28 on the first link and a mondo 29 on the link you provided. Everything seems to be a size out between the two. Any idea why this would be and what the correct chart would be?