Leather vamp and vamp overlay Synthetic quarter panel, eyestay and heel cap with underlays Rubber midsole Rubber outsole PUMA Formstrip in synthetic leather on the medial and lateral sides Back In 1987, The Puma Slipstream Entered The Scene As A High-Flying, Slam-Dunking, Statement-Making Basketball Sneaker. With The Slipstream Bball, We're Going Back To Its Proud Basketball Roots. It Features A Leather Upper With Subtle Pops Of Color, As Well As A Synthetic Puma Formstrip And Synthetic Underlays For A Clean Court-Side Look.