... upper, Good wearability, good ESD performance Comfortable, deft, firm ESD shoes are made of electrostatic dissipative material PU, make sole and ... together, then suture them to make it more durable. The shoes are comfortable with excellent wearability and ESD performance.Material: PU ... insulation material to the sole.4. Test resistance of the shoes everyweek, and clean it or change it according the ...