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It adopts the first layer of flame retardant waterproof cowhide, the bottom of the boot is made of flame retardant rubber, the top of the bag is made of lightweight anti-mite material, the bottom of the sole is made of composite fiber material, and the wearer is made of waterproof and permeable material and antibacterial and odor-resistant cushioning insole.

The main body of the whole shoe is black, fastened with flame-retardant zipper. The handle has a handle on both sides and has a locking protection design. The visible part of the heel has a flame-retardant reflective marking tape. It has flame retardant, waterproof, anti-skid, acid and alkali resistance and resistance. The puncture force is not less than 1100N. After the anti-mite test, the gap height of the boot is not less than 15mm, the withstand voltage is not less than 5000V, and the leakage current is 0.1mA. After the radiation resistance test, the inner surface temperature is 8.5°C, the boot and the sole The bonding strength is not less than 3.0N/mm, the flame retardant damage length is not more than 100mm, the afterburning time is not more than 2s, and there should be no melting, dripping, peeling, etc., and the weight of the 255 yards is not more than 2.3kg.