GALAXY S3 SRC METAL FREE Size Range 38 - 47 Category SJ Flex/Composite S3 SRC Certificates CE(EU) ASTM(USA) GOST (RUSSIA) OHSC(PHILLIPINE) LA(CHINA) BSI (AUSTRALIA/NEW ZEALAND) Buyer Feedback Internation Standard International standard: SB:shoes and boots comply with basic requirements only. SBP:same as SB+steel plate midsole. S1:antistatic properties,outsole resistant to oils and fuels,energy absorbed in heels. S1P:same as S1+steel plate midsole. S2:same as S1+water penetration and absorption S3:same as S2+puncture-proof and tread pattern FAQ