Streamline CT S1P | CharcoalA light and adhesive athletic inspired shoe that has all the characteristics of safety, durability, and most importantly, comfort you would expect from Cat. *Low strength nylon upper fabric and nylon mesh lining for ventilation and comfort * In the back, mesh fabric injected with PU *Foam for shock absorption *Dual density EVA midsole * Removable EVA and Nylex insole * Sewn Strobel construction and bonded to some super adhesive T1000 rubber and