10364100044 Features: Edge small crevices and pockets in 4 mm Vibram XS Grip rubber while a Powerhinge and dynamic slingshot heel band focus your energy at the toe box for superior sensitivity Get an inside edge sweet spot with the offset, asymmetrical toe box that puts power at the big toe While you get superior climbing ability, get enhanced comfort when you cinch up the 8-panel Dentex-lined leather uppers" speed lacing system Your arches are supported by the light, thin, yet torsionally rigid fiber-laminate Laspoflex midsole Specifications: Upper: leather Lined: yes Outsole: Vibram XS Grip rubber