Year Introduced: 2004

Reebok's Pump was a sensation when it first dropped in 1989, and it just grew from there. It started with the ball on the tongue, progressed to a CO2-powered "Insta Pump," then became self-aware automatic in 2004. The Pump 2.0 was a laceless shoe that pumped itself after just a few steps. It never really caught on as a performance product, but oh, what could have been.