You can use the promo code PUMASTUDENT11 to get $15 off orders of $100 - $149, $30 off orders of $150 - $199, $50 off orders of $200 or more (Expires 12/31/11) Plus on top of that automatically get 5% cash back.
Found the deal on
http://studentrate.com/StudentRate/all/get-all-student-deals/PUMA-Student-Discounts--/0