The Infrastructure ST is a work boot for those that hate wearing heavy work boots. Designed for a new generation of workers who need performance, comfort and safety, but want sleek styling as well. Revolutionary one piece upper design provides seamless comfort and maximum breathability. Steel toe caps and electrical hazard technology provide trusted on-the-job safety and protection. Built with SRX Extreme Slip Resistant outsoles and ERGO comfort design philosophy offers extreme comfort and flexibility with maximum durability.

• Height: 3.5"
• Weight: 18.80 oz. per boot
• Upper: Nylon mesh with suede and polyurethane (PU) overlays
• Midsole: Dual density EVA
• Outsole: T1000 rubber
• Insole: Open cell polyurethane (PU) foam

Features

• Steel toe caps meet ASTM F2413-11 safety standards
• Meets or exceeds ASTM class 75 Impact and Compression standards, the highest available strength for impact and compression
• Under Class 75 test for impact the boot must withstand a 75 lb. impact with 0.50" clearance
• Under Class 75 test for compression the boot must withstand 2,500 lbs. of compression while maintaining at least 0.50" clearance
• Electrical hazard protection meets ASTM F2413-11 EH standards
• Under dry conditions EH protection must be able to endure the application of 18,000 volts at 60 hertz for one minute with no current flow or leakage current in excess of 1.0 milliamperes
• Non-conductive electrical shock resistant soles protect against accidental contact with live electrical circuits, electrically energized conductors, parts or apparatus
• SRX compound in the outsole provides best-in-class slip resistance and reduces the risk of slips and falls in the workplace
• Seamless one piece upper reduces the chance of blisters and offers maximum breathability
• PU and suede exoskeleton overlays for structure, support and protection
• Breathable nylon mesh lining
• Foam collar cradles the foot around the ankle bone to provide cushioning during motion
• ERGO comfort system uses a series of anatomically-accurate and biomechanically-considered features engineered to integrate stability, flexibility and comfort into these rugged and durable shoes
• Contoured open cell PU insole is shaped to fit the foot and enhances breathability and shock absorption
• Sculpted design of the shoe creates arch support, heel cushioning and lasting comfort
• Sculpted dual density midsole provides superior motion control and support while absorbing shock and returning energy
• Dual forged construction combines strobel stitching and cement processes for long wearing, lightweight durability
• T1000 rubber outsole provides superior slip-, oil- water-, heat- and abrasion- resistance