Richard Rubin, a former Aris Isotoner executive, served as the prosecution's key glove expert, testifying across multiple days in June 1995 and returning during rebuttal in September. Called by Christopher Darden, he identified the crime scene gloves and addressed their manufacturing characteristics, shrinkage, and fit — including testifying that the gloves fit O.J. Simpson "quite well" during the courtroom glove demonstration on Day 100 of the trial. Johnnie Cochran's cross-examination challenged Rubin's shrinkage theory and golf glove comparisons, and his September rebuttal appearance drew scrutiny when the defense exposed inappropriate contact with prosecutors and incomplete research, significantly damaging his credibility.