A heatable wear device includes a wear body, at least one heating module, and a circuit board. The heating module is installed inside the wear body and includes an explosion-proof battery, a heating layer, and a covering layer with a high specific heat. The heating layer is electrically connected to the explosion-proof battery and disposed corresponding to the explosion-proof battery. The covering layer with a high specific heat is clamped between the explosion-proof battery and the heating layer. The covering layer with a high specific heat includes a first surface and a second surface opposite to the first surface. The first surface is attached to the explosion-proof battery and the second surface is attached to the heating layer. The circuit board is installed inside the wear body and electrically connected to the explosion-proof battery.