Nike offers its Nike Men's SB Dunk High Pro Picnic Skateboarding Shoes for $69.97. Coupon code "25MORE" drops them to $52.48. Plus, Nike+ members receive free shipping. (Not a member? It's free to join.) That's the lowest total price we could find by $17. They're available in sizes 4 to 13, although not in all size/color combinations. Deal ends March 27.