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. 3-pronged TPU Suspension Shank for multi-directional support 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 Fully lined with breathable moisture-wicking material Georgia waterproof system Heel-stabilizing Counter Lock Injection molded seamless construction Non-metallic Secondary fiberglass shank for additional arch support This product is intended for severe wet conditions. Made with PFAS chemicals TPU outsole with PU midsole