The Calderdale is a waterproof metal free safety hiker from Amblers Safety. Featuring a 200 joules fibre glass composite toe cap and a non-metallic midsole for impact and penetration resistance.. Contemporary Designed Low Sew TPU Bonded Rip-stop Upper. Fully Non-Metal Safety Hiking Boot. Internal Waterproof Membrane. Moulded TPU Toe Guard for Extra Durability. Moulded TPU Heel Counter for Enhanced Heel Support and Extra Protection. Deep Padded Mesh Collar for Extra Comfort. YKK Side Zip. Reflective Laces Safety Rating: S7S FO HRO SR 200J Composite Toe Cap Composite Penetration-Resistant Midsole Standard Fit Fuel Oil-Resistant Sole 300°C Heat-Resistant Sole Waterproof ESD Sole Shock-Absorbing Sole TPU Heel Guard Safety Rating: S7S FO HRO SR 200J Composite Toe Cap Composite Penetration-Resistant Midsole Standard Fit Fuel Oil-Resistant Sole 300°C Heat-Resistant Sole Waterproof ESD Sole Shock-Absorbing Sole TPU Heel Guard