Update 2:  Actually the 14 4E were slight too big - I got some blisters because of them being loose. I 14 2E would be a better fit for the 13 $E. What interesting is that the shoe fitting tool says they'd both fit *perfectly*.   Buying shoes online is still hard. ---   Update: Amazon has introduced a new way to see if 1 pair of shoes compares against another pair.  So I entered that I had the MT910v1s and wore them in 13 4E and they fit perfectly and Amazon recommended (with a fancy 3d graphic) that the V2 size would be 14 4e.  Well I took a chance and ordered a pair and guess what -- they fit perfectly. Amazon gets a GOOD JOB from me.  New Balance gets a SHAME ON YOU for wildly mis-sizing the V2 or these shoes.  -------------  I was thrilled hearing that New Balance was making an updated version of the 910s, I still have my original pair (worn out but good for the beach) and would have re-purchased the v1s again if they were available.  The bad news about the v2's is that the toe box area seemed significantly smaller and my big toe and the toe next to it hit the edge of shoe while walking, making it a very uncomfortable shoe.  I experienced the same issue with there 1069s and it caused me to have x-rays done to determine if I had broken a toe  (I didn't.)  I returned them without trying a larger size because they stop offering .5 increments at 13 4E.  I hope new Balance starts sizing their shoes correctly. I'd expect a v1 and v2 to offer the same toe box space.  I gave them 2 starts because the black and orange coloring looks really good.