The Caterpillar Steel Toe Endure work boot is made with a brown full grain leather upper. This ultra tough leather work boot is made with an ASTM rated steel toe. The interior of this boot has ultra soft mesh lining that is smooth against your foot. The slip resistant rubber iTechnology outsole is perfect for all terrains as well as being EH rated for electrical hazards. The interior Ortholite insole is antibacterial and anti-microbial. Catch this one before it goes.