Upper: PU-coated leather and synthetic nubuck upper, Abrasion-resistant mesh DryVent waterproof membrane, HF-welded navicular lock overlay Eco-friendly OrthoLite X35 Hybrid footbed, Sole Unit: Single-density EVA midsole Nylon midfoot shank, ESS midfoot shank, Rustproof hardware CRADLE heel-stability technology, Vibram XS Trek outsole