Nordica One 45 Ski Boots men's ski boots size mondo 30.5, men US 12 New Perfect combination of comfort and convenience Flex 45, , , 4 buckles, 105 mm last width brand new pair in box size mondo 30.5 that is about US men size 12 according to most charts mondo 30.5 , sole /shell size is 345mm to help you out Brand new alpine/downhill ski boots 45flex easy entry,They have a pretty generous fit so just about anyone can fit into it