Incorporating an innovative Tailex lining to adapt to changing foot positions, Reebok's 8" Rapid Response RB SZ is a hard-working tactical boot with optimum shock absorption and comfort. The leather and Cordura upper is ultra-durable and protects feet in hazardous conditions, while the rubber outsole grips on any terrain with superior traction. There is a cushioned polyurethane midsole molded to provide a supportive, comfortable fit and a TPU heel stabilizer built into the FootForce insole that eliminates shock through the heel and forefoot. The FootForce insole, while removable, is also designed to reduce foot fatigue and promote a healthy stride. There is also a side zipper for convenience, in addition to the traditional full-length lacing system.