Built with an injected molded construction, the FLXPoint ULTRA lace up waterproof work boot is a flexible work boot packed with comfort features. The salt resistant leather upper on this durable work boot is equipped with a waterproof membrane and lined in a breathable moisture-wicking material. Inside is our Comfort Core Next Gen footbed, a removable memory foam insole with individual shock absorbing comfort core pillars and air flow channels to keep your feet cool. The foundation of this non metallic work boot consists of a fiberglass shank for arch support, a PU midsole, a 3-pronged TPU shank for extended multi-directional support and a TPU outsole. It meets ASTM F2892 electrical hazard standards for soft toe safety boots. If you need a waterproof defined heel work boot with flexibility and comfort, try the Georgia Boot FLXPoint ULTRA collection. Georgia waterproof system Non-metallic Fully lined with breathable moisture-wicking material Injection molded seamless construction TPU outsole with PU midsole Heel-stabilizing Counter Lock 6 Inches in height ASTM F2892 electrical hazard standard Combination eyelet/hook hardware Comfort Core® Next Gen memory foam insole Full-grain SPR salt-resistant leather 3-pronged TPU Suspension Shank for multidirectional support Secondary fiberglass shank for additional arch support Georgia Boot Men's FLXPoint ULTRA Brown Waterproof Work Boot GB00551