The updated Diadora Speed Star K Duratech tennis shoe gets a slightly new design, but maintains the same features as its predecessors giving you an excellent blend of comfort, stability, and durability. See what our playtesters’ thought of this retro tennis shoe.
After having been replaced by the Hypercourt Express back in 2014/2015, many thought the Ultrascendor had been permanently laid to rest. They were wrong. To celebrate the shoe’s 20th anniversary, K-Swiss has allowed customers to experience the classic shoe yet again.