In reply to hpil:
I have extreme trouble finding boots that fit. I have a long big toe so spotiva boots tend to be too short in the correct size and have a thin heal so Scarpa tend to be a little wide however MB Pro's were the most comfortable boot I tried on during my long hunt. They are probably amongst the more comfortable B3 boot to walk in as the ankle articulation is good and they flex quite a bit in size 11 but with a pair of C3's they are pretty stiff, they have good feel but aren't the warmest boot out there, if you find you get cold feet get phantom guides instead if they fit as they are a similar fit.