ALASKA S3 The Alaska boot is proven to withstand the toughest abuse and the harshest environment with extra winter lining in synthetic wool to keep you warm. The oil and heat resistant anti slip rubber outsole for extra protection and a side zipper for easy in/out function.     Upper: Full-grain leather, with side zipper     Lining: Synthetic wool     Outsole: Oil and heat resistant anti-slip rubber     Midsole: Polyurethane     Footbed: Antibacterial insole with Gel-pad.     Fit: Standard     Size: 36-48     Protection: Composite toe and composite     plate     Safety standard: EN 20345 S3, SRC, CI Material: A VAT INVOICE IS PROVIDED WITH ALL PURCHASES. Toe Guard TG80420 Alaska S3 SRC Safety Work Boot