It's from Gucci.   You can find all his clothes here: http://www.usanetwork.com/series/suits/features/s2style/#prettyPhoto[gallery1]/21/   I have been looking for it for hours yesterday.   Unfortunately it's not in the current Gucci fashion anymore. Gotta check out other sellers. Let me know if you find the exact same one. The brand is Gucci for sure.