Explorer Thermo+ Full Safety Charcoal Shoes E902033 Rubber Rubber sole Size range: US6-US15 Protective toe + midsole Standard: CSA Z195-09 SD ?, ASTM F2413-11 M I/75 C/75 EH PR Certification : For the American market Dunlop boots are tested in accordance with the ASTM standard. Dunlop boots for the Canadian market are tested and certified in accordance with the CSA provisions.