PUMA Future Cat meets UNI construction. The PUMA Future Cat UNI SF is an update to the Future Cat Low, taking the classic performance style and adding a twist by constructing the outsole using UNI construction -- a design technique in which the upper is stitched rather than glued, lasted or nailed to the sole of the shoe. Clean, sleek and low-profile, the Future Cat retains its shape and silhouette, but gains a contemporary look to refresh the style for future generations. Features include a leather upper and clear rubber sole.