S3, WR, HRO, SRC. Brown leather waterproof safety boot. Fully Non-Metallic. Padded collar and tongue for added comfort. Composite toe cap and midsole protection. Waterproof and breathable inner lining + Thinsulate. Dual density phylon/rubber heat resistant outsole with anti-scuff toe guard. Anti-static. A good all-round waterproof safety boot for a wide range of outdoor applications.