Upper: Microfiber with TPU reinforcements. Oil resistant and heat resistant outsole Slip resistant Nail protection Sole: ESD - Electric hazard resistant rubber Poured PU technology in midsoles with a thin rubber outsole. Highly breathable PU foam with moisture wicking top cloth outer shell. BOA Fit System: distributes pressure evenly across the feet for a perfect locked-in fit that is more comfortable. Super-strong lightweight lace allows for a fast, effortless, precision fit and easy adjustments. Fiberglass toe cap and soft puncture resistance: Non-metallic protection in toe cap and puncture board. Safety: Impact, compression, electric hazard, and puncture resistance (meets or exceeds ASTM F2413-18 M/I/C EH/PR). Available in sizes US 6 - 14