Prepare for all the bumps in the road with the Rumbler work boot Waterproof Leather and TPU infused nylon upper External TPU toe cap for added protection and durability Fiberglass shank ASTM F2413 electrical hazard standard Internal EVA midsole encapsulated in TPU with heel stabilizer Chemical, oil, abrasion, heat, and slip resistant rubber outsole ASTM F2413 protective toe classification Georgia Boot Men's 6 Inch WP CT Rumbler