First off, I wanna say these shirts are fuckin sick (with the exception of it saying opeth again on the back)
http://cgi.ebay.com/NEW-OPETH-METAL-ROCK-EMO-MUSIC-T-SHIRT-AWESOME-Sz-L_W0QQitemZ320298528764QQihZ011QQcategoryZ15687QQssPageNameZWDVWQQrdZ1QQcmdZViewItem#ebayphotohosting...
As much as people don't realize, I honestly do believe alongside with the music, that sub-consciously the name OPETH and the beautiful logo it holds is truly epic and probably has a big impact on the bands individuality.