If you're talking about the shoes you see when he jumps from window to window then those are Timberland eurohiker v2.0.
this would fit in with how Bourne wore original EuroHikers in "Identity" and...
Taken from a forum talking about Bourne's clothing in the Ultimatum movie.
I can'T claim any credit for finding this outside a google search.Hope it's what you are after:T-Shirts from H&M
A...