quik notes. pulse is made of kangaroo leather, the predator vamps are a little different, the outsole is made of two peices, and has some new technology about putting more weight behind the ball to get more power. pulsion I believe is made of calf leather, the predator vamps are different, the outsole is a one peice design, and it doesn't have the power technology. the pulsion looks and play very well for the money. don't think that they are a crap shoe. it's probly one of the best shoes for the money. Unless you go on to ebay, or buy last years models.