The new Company CST 2.0 boot features a full-grain leather upper. 5.11's Quick Call Collar, a perforated neoprene ankle bootie for outstanding comfort and fit. The Company CST 2.0 boot features a composite safety toe that is ASTM F2413-05 M I/75/C/75 EH PR. Company CST 2.0 boots features an antibacterial lining plus OrthoLite sockliners and an oil and slip-resistance outsole.