Firewalk Anti-Shock Boot Full grain leather 4 pair eyelet lace-up with hooks Padded collar and ½ padded bellows tongue for comfort Non-woven material in-sock laminated to Kevlar to protect the foot from heat transferance, through the sole of the boot Anti-bacterial Energiser woollen top sock with anti-microbial properties Anti-penetration midsole available – 42603 (6-8 weeks) Double Density PU/Rubber – outersole 8mm thick (heat resistant up to 300° C)