Flexible Strobel Construction with Sebago Water Drainage System. Hydrophobic Technical Synthetic Nubuck/Full Grain. Weather Proof leathers. Hydrophobic Textile Lining Package. Lacing System with Lace Garage. Molded Vibram Rubber Toe Cap. Removable EMAX Cushioned Anatomic Footbed. Performance EVA midsole with Water Evacuation. Channeling. Vibram Slip-resistant SPS Sole with Slip-resistant, Non-marking Rubber.