Dan Post's Hurricane Series Boots Are Amazing In Design, Performance And Comfort. The Unique Design Delivers The Wearer The Best Experience. Featuring Full Grain Waterproof Leather Upper, Dual Density Midsole For Flexibility, Comfort And Energy Return, Breathable Open Cell Orthotic With Otholite. Omni-Directional Tread Design For Multi-Directional Grip. Oil, Heat And Slip-Resistant Rubber Outsole. The Composite Toe And Electrical Hazard Rating Meets Astm F2413-18 Standards.