It appears that rossignol is using traditional shoe sizing for this boot, if I typically wear a 28.5 mondopoint what size should I go with in the B-squad pro? I wear an 11.5 shoe size but am worried to order this size boot. Does anyone have any suggestions?

Tech Specs:

Shell Material:

Injected Plastic over Carbon inserts 

Liner Material:

Pro Fit Polyurethane Anatomical Padding 

Thermo-moldable Liner:

Yes 

Number of Buckles:

Four 

Micro Adjustable:

Yes 

Recommended Use:

Big mountain freeskiing, advanced and expert skiing 

Manufacturer Warranty:

1 Year