This model is the same as the Reebok model 8875 side zip boot with the addition of a composite safety toe. Construction of the Reebok RB8874 Side Zip Composite Toe Tactical Boot includes full grain leather and 1200 denier nylon uppers with high abrasion and slip-resistant non-marking dual density outsoles. The parts you can't see are equally important: non-metallic shanks, dual-density ball and heel cushion, and Shock Eliminator technology that lets the boots take the pounding, not your feet. Removable FOOTFORCE comfort insole provides arch support and heel stabilization to keep leg and back pain at bay for hours. Non-metallic lacing hardware will not rust or corrode, and allows rapid donning.