Perform at your best with the classic and durable World Tour by Rockport Works. With puncture resistant and static dissipative technologies built-in, these work shoes have your back. Men's Five Eye Tie Casual Moc Toe Oxford ASTM F2413, Steel Toe, Static Dissipative (SD 10) with Dual Resistor, CSA Static Dissipative, Steel Toe, truTECH, CSA Impact - No Puncture Protection (Blue Rectangle) -Dual Resistor exclusive technology for ultimate static dissipation -Puncture resistance for extra protection -Meets ASTM and CSA Standards -truTECH Shock Absorbing Heel Pad for extra cushioning