Built with an innovative Tailex lining for superior adaptability, Reebok's 6" Rapid Response RB SZ boot is designed to deliver maximum arch support, shock absorption and comfort. The smooth leather and Cordura upper is resilient enough to handle rocky, mountainous terrain, as well as urban landscapes, and the dual-density rubber outsole maintains traction on any surface. There is an F2 dual-density polyurethane insert that features a thermoplastic polyurethane heel stabilizer to reduce foot fatigue and eliminate shock through the heel and forefoot. The cushioned EVA midsole provides much-needed rigidity for a comfortable stride and soft landings. There is also a side zipper for convenience, in addition to the traditional full-length lacing system. This model boasts a soft toe and electrical hazard safety for dangerous work conditions.