First released in 2003, the Nike Air Zoom Spiridon Cage 2 is as relevant today as it was then. It features the original design lines and caged Zoom Air unit for a responsive ride back to the 2000s. Responsive Ride Caged Zoom Air unit provides a responsive ride and modern look. Lightweight Flexibility Full-length foam midsole is lightweight and flexible. Durable Traction Durable rubber pods on the outsole provide traction where you need it.