Abstract: The protective coveralls for electrical utility workers are designed to protect the wearer from fire and other thermal hazards, and particularly designed to insulate the rear half of the body of the wearer from direct contact with an electrical source up to 600 volts. The protective coverall has a front half is constructed from dual layers of fire-retardant fabric, and a rear half which includes electrical insulation provided by a rubber lining disposed between the outer and inner layer of fire-retardant fabric. The stitching on the rear half in the elbow and knee regions is done in concentric circles to increase flexibility.