Nike SB has released this teaser video to highlight some of the improved features of the new Dunk Pro. Since its introduction in 1985, the Dunk hasn't undergone many radical changes, but with the 10th Anniversary of SB approaching it was time for an upgrade. Improvements include a new tread pattern for increased traction, relocated seams for a better fit, a phylon midsole for impact protection and a lightweight-yet-durable corded outsole. Check this graphic autopsy video to see what makes the new Dunk Pros tick (warning: not for the faint of heart!) Via Nike Skateboarding.