The waterproof Chelsea work boot from Georgia Boot, made with DuraBlend Sport, ensures foot protection and support without causing heaviness or discomfort. Georgia Waterproof System - Don't sweat it. Air gets in, even though water can't. Non-metallic Flexible Strobel construction Full-grain leather upper Fiberglass shank ASTM F2892 electrical hazard standard High performance mesh lining Quick Response Polyurethane foam removable insole Heat, chemical, abrasion, and slip-resisting dual-density EVA and Carbo-Tec rubber outsole Abrasion-resistant DuraBlend midsole 3D knit stretch collar Georgia Boot Men's Durablend Sport Chelsea WP