The lightweight nano composite safety toe on the Georgia Boot Men's Core 37 9" Low Heel Waterproof Composite Toe Logger Work Boots is paired with Ergo-Fit shaping to match the natural contours of your foot, meeting ASTM F2413 standards for protective toe and electrical hazard safety. A triple ribbed steel shank adds stability, and the Carbo-Tec rubber lug outsole resists heat, chemical, abrasion, and slips.