5mm CR Flex-Foam. 100% Waterproof. Breathable Airmesh Lining. Honeywell RDR™ Oil and Chemical Resistant Rubber. V-Wave™ Outsole with Honeywell SR™ Slip-Resistant Compound. Steel Shank. Triple Toe and Quadruple Rubber Heel Reinforcements. Comfort range of Sub Freezing to 65°F/18°C. Steel toe meets ASTM F2413-11 M 1/75 C/75. Imported.