Goodyear Welt Boots These Goodyear welt boots with a robust design are SBP HRO SRC certified, offering excellent slip resistance and heat resistance. Upper in leather. Midsole and toe cap in steel. Heat resistant sole to 300°C. What is Goodyear Welt Boot? A Goodyear welt is a strip of leather, rubber, or plastic that runs along the outsole of the shoe/boot and serves to attach the upper to the sole. The construction gets its strength, durability and repair qualities Guide to Safety Footwear Main Safety Properties of SBP Work Shoes Toe Protection Against 200-Joule Impact Heat Resistant Sole to 300°C Penetration Resistance Excellent Slip Resistance Oil Resistant Sole COLOUR: Black or Brown FIT: Normal CERTIFICATIONS: EN ISO 20345:2011 S3 SRC MAIN MATERIAL: Leather upper, Steel toe cap & midsole protection