The upper or sole of the Labor Insurance rain boots shall have the standard number, the insulation type and the voltage value. When purchasing insulated water work rain boots, check whether there are permanent insulation marks on the shoes, such as the red lightning symbol, the shoe has a resistance voltage of V, etc..

Whether there is a certificate of conformity, safety certificate, production license number, etc. The main function of ordinary industrial safety gumboots is waterproof and non-slip, which can oxidize, sun and high temperature can accelerate the aging speed of rubber products, making them hard and soft. 

In the current market, the phenomenon of replacing the insulated shoes with the life soles often occurs. It is the thickest part of the sole and it is less than 6 mm. If you are interested in our products, please contact : Starry Zhu (WhatsApp: +8618094550160).