A safety garment for use in hazardous environments. The safety garment includes a covering configured to cover at least part of a torso of a wearer of the garment and a refillable heat extraction pack attached to the covering. The pack defines a chamber for receiving and releasably retaining a cooling medium therein for absorbing heat from the wearer and a flow control device for permitting the release of the cooling medium from the chamber via a port after a cooling capacity of the cooling medium has been reduced. The safety garment also includes a wearer-carrying harness integrated into the covering. The wearer-carrying harness having a pair of shoulder straps, each of the shoulder straps being configured to completely encircle a respective shoulder of the wearer.