Blundstone Elastic Sided TPU Sole Safety Boot 310 | Seton 。NWT Blundstone TPU Elastic Sided Boots; Genuine leather upper • Black premium oil tanned leather work boot (does not have a protective safety toe cap). • Polyurethane midsole for comfort. • Thermoplastic polyurethane outsole highly resistant to hydrolysis and microbial attack. • Comfort Classic footbed with XRD® heel and forepart inserts for impact absorption and greater comfort • XRD® in the heel strike zone for increased impact protection. • Kick guard toe leather protection. • Electrical hazard resistant. • Steel shank for maximum torsional stability. The TPU outsole provides stability and slip-resistance in muddy and outdoor conditions.