Blaklader ASPHALT Safety Boot 24590000 A boot made especially for work with asphalt. It´s made of strong, durable leather with a smooth outsole made of nitrile rubber that can manage temperatures up to 300°C. Inside the sole, there is a heat-protective foil, and the nail penetration is made of soft textile. The insole, with anatomical support, is made of a smooth PU material covered with a textile surface with good moisture absorption. The Freelock function, covered with a leather tongue, fastened by two velcro straps, makes it easy to jump in and out of the shoes. Product Features Freelock Composite toe cap Nail protection - Textile PL Padded shaft edge Antistatic properties Oil resistant outsole Reflective details Toe reinforcement Heat resistant outsole Water repellent Certification: EN ISO 20345:2011 S2 P HRO HI SRA Materials: Lining - Membrane; Upper - Full grain leather; Insole - Textile, soft PU; Sole - PU midsole, nylon shank, Nitrile outsole Sizes: UK2 - 35 to UK13 - 48 Please click on the size guide to check this style's sizes.