FilaMen's Memory Workshift-m Shoes

I usually get 9.5 new balance, is sizing same?

How is the fit

Expanding on the previous question, how much more wider is the 4E vs. the 2E? I wonder if my feet fit in the 4E.

I want to buy 2 pairs of shoes (40eur and 42eur) can you help me with the size in us?