UPPER/LINING: Waterproof Construction , Waterproof Nubuck Leather Upper , Breathable Mesh Lining Treated with Antimicrobial Solution , Breathable Padded Tongue , Injection Molded TPU Counter Reinforcement , Injection Molded TPU Instep Stability Arm , Protective Molded Rubber Rand , Protective Molded Rubber Toe Bumper , 4.5mm Anatomical Ortholite Footbed , , MIDSOLE/OUTSOLE , Nylon 6.6 Injection Molded Arch Shank , In-Board ™ Compression Molded EVA Footframe with Grade 4 Tapered Nylon Insole Molded to Bottom , Merrell Air Cushion Midsole , 5mm Sole Lug Depth , Vibram Chameleon Hiker ™ Sole/TC5+ Rubber