One of the key features of Rocky Alpha Force Waterproof Composite Toe Public Service Boots is the non-metallic composite toe cap. These meet the highest Astm F2413 Protective Toe footwear standards for Impact and Compression resistance. An additional feature of these public service boots is Rocky Waterproof construction. It combines a waterproof inner layer with the upper providing a barrier that helps keep water out and feet dry. The boots have a contoured removable polyurethane cushion insole providing direct underfoot cushion comfort. Some open-celled foams feel comfortable to the initial touch, but tend to break down faster than a product made with polyurethane. Plus, these insoles are extra thick in the heel contact area. This provides additional underfoot comfort. In addition to meeting Impact and Compression standards, this style complies with Electrical Hazard standards.