The Meta-Pac work boots provide 100% waterproof protection and a secure fit. A rigid, contoured heel prevents heel slippage and keeps boots on in mud and wet terrain. A double-layer toe guard provides durability in conditions where crawling is required. The Trac-Lite outsole gives excellent traction on wet surfaces. The steel safety toe, steel midsole and floating metatarsal guard meet or exceed ASTM F2413-05 M I/75 C/75 EH PR Mt. Nylon lining allows easy on/off. Fiberglass shank.