. weight≦ 2500g/pair
. Withstand voltage≧5000V
. Waterproof and flame retardant
. sole resistant to contact with hot surface
. sole resistant to flame and radiant heat
. outsole penetration resistance≧1100N
. breaking the elongation≧480%
.material of toe cap:stainless steel
.midsole:Kevlar fiber plate
. special chloroprene rubber and natural rubber