Georgia waterproof system. ASTM F2413 protective toe classification. ASTM F2413 Electrical Hazard Standard. Fiberglass shank. 6 Inches in height. High performance mesh lining. Composite toe. Weight: 3.2 pounds per pair for a size 10. AMP LT insole with memory foam. Oil-, chemical-, abrasion-, heat-, and slip-resistant rubber outsole. Internal EVA midsole encapsulated in external TPU heel stabilizer. External TPU toe cap for added protection and durability. Leather and TPU infused nylon upper.