The Mercury Non-Metallic Waterproof Safety Boot is a robust choice for tradespeople tackling demanding outdoor work. Built for durability, comfort, and reliable protection, this S3-rated boot performs across construction sites, warehouses, and industrial environments. Engineered to stay waterproof with a breathable inner lining, it keeps feet dry and comfortable regardless of weather. The non-metallic composite toe cap and protective midsole deliver lightweight defence against impact and underfoot hazards. A dual density PU outsole provides superior grip, stability, and proven resistance to oils and heat up to 300°C. Anti-static properties, slip resistance, and a reinforced scuff cap add extra workplace safety and durability where it matters most. The padded collar and tongue ensure all-day comfort on demanding jobs. Key Features S3 safety rating – ideal for heavy-duty work environments Water resistant (WR) upper to keep feet dry Composite toe cap for lightweight protection Non-metallic construction – metal-free and airport friendly Protective composite midsole against underfoot hazards Dual density PU outsole for durability and comfort Slip resistant (SRC) outsole tested to industry standards Heat resistant outsole (HRO) up to 300°C Fuel and oil resistant outsole Anti-static properties for added workplace safety Padded collar and tongue for enhanced comfort Scuff cap for added durability in high-wear areas Waterproof and breathable inner lining Fabric & Weight Upper: Durable leather Lining: Waterproof breathable membrane Outsole: Dual density PU Toe Cap: Composite Midsole: Composite anti-penetration Sizes Available in UK sizes 3 to 13. UK 3 – EU 37 UK 4 – EU 38 UK 5 – EU 39 UK 6 – EU 40 UK 7 – EU 41 UK 8 – EU 42 UK 9 – EU 43 UK 10 – EU 44 UK 11 – EU 45 UK 12 – EU 46 UK 13 – EU 47 Suitable For Construction and site work Outdoor trades and groundworks Warehouse and logistics roles Engineering and maintenance General industrial environments Care Instructions Clean with a soft brush or damp cloth Allow to air dry naturally Do not machine wash or tumble dry Treat leather regularly to maintain performance