EN ISO 20345: 2011 S3 WR RHO SRA Steel toe-cap to EN20345 (200 joules) Steel midsole for underfoot protection. Waterproof membrane. Scuff cap and heel guard. Lace protector. Sole slip resistant to SRA standard. Anti-static and energy absorbent heel. Cemented rubber outsole with Phylon insert.Washing Instructions Do not wash - EN ISO 20345: 2011 S3 WR RHO SRA Steel toe-cap to EN20345 (200 joules) Steel midsole for underfoot protection. Waterproof membrane. Scuff cap and heel guard. Lace protector. Sole slip resistant to SRA standard. Anti-static and energy absorbent heel. Cemented rubber outsole with Phylon insert.Washing Instructions Do not wash