Leather upper Lace up closure SoftFoam+ sockliner Rubber outsole The Graviton Pro L Is Inspired By Puma S Heritage Running Archive With An Easy Going And Progressive Aesthetic. The Upper Consists Of Full Leather And Features An Overlay, Wrapping Around The Forefoot Area, Formstripe Such As Tongue And Fot Branding. The Imeva Midsole Gives The Look Of A Die Cut Runner, But Allows Us To Play With Sculpting And Textures On The Sidewall.