i noticed that a lot of tariqas have certain types of uniforms or dress code. that when a new murid joins the gang, he has to dress like them. I always found this to be rather strange. good answer is given by the following brother on the issue, of should we be really following a groups dress or that of the sunnah? http://mybeliefs.co.uk/2011/10/09/sufi-dress-code/