An integrated, single-use disposable thermal covering for use on the hand-wrist area of a user comprising: (a) a chassis having a longitudinal axis and a transverse axis and comprising a flexible body portion having a front side facing inwardly toward the skin of the user and an outer surface opposite said front side, the flexible body portion having at least one thermal region on the front side; (b) a thermic component irreversibly incorporated into said body portion at said thermal region so as to be integral with and fixed to the chassis, wherein said thermic component comprises at least one continuous layer of material and a plurality of individual exothermic heat cells, the heat cells being spaced apart from each other and fixed to one layer of the at least one continuous layer of material; (c) a releasable attachment element to releasably attach the thermal covering around the hand-wrist area of the user; (d) a flexible retaining element attached to the body portion, wherein at least one of said body portion and said flexible retaining element comprises an elastomeric material and is stretchable along said longitudinal axis of said chassis; and (e) a digit-receiving aperture extending through said body portion from the front side to the outer surface and adjacent to said thermal region, wherein: ( i) said digit-receiving aperture is selected from the group consisting of a slit, slot or combination thereof, oriented in a transverse axis of said chassis and located distally from said retaining element on the body portion, and ( ii) said digit-receiving aperture comprises a thumb-receiving aperture and is formed such that the thumb of the user passes through and anchors the thermal covering in place during installation and use. (a) a chassis having a longitudinal axis and a transverse axis and comprising a flexible body portion having a front side facing inwardly toward the skin of the user and an outer surface opposite said front side, the flexible body portion having at least one thermal region on the front side; (b) a thermic component irreversibly incorporated into said body portion at said thermal region so as to be integral with and fixed to the chassis, wherein said thermic component comprises at least one continuous layer of material and a plurality of individual exothermic heat cells, the heat cells being spaced apart from each other and fixed to one layer of the at least one continuous layer of material; (c) a releasable attachment element to releasably attach the thermal covering around the hand-wrist area of the user; (d) a flexible retaining element attached to the body portion, wherein at least one of said body portion and said flexible retaining element comprises an elastomeric material and is stretchable along said longitudinal axis of said chassis; and (e) a digit-receiving aperture extending through said body portion from the front side to the outer surface and adjacent to said thermal region, wherein: ( i) said digit-receiving aperture is selected from the group consisting of a slit, slot or combination thereof, oriented in a transverse axis of said chassis and located distally from said retaining element on the body portion, and ( ii) said digit-receiving aperture comprises a thumb-receiving aperture and is formed such that the thumb of the user passes through and anchors the thermal covering in place during installation and use. ( i) said digit-receiving aperture is selected from the group consisting of a slit, slot or combination thereof, oriented in a transverse axis of said chassis and located distally from said retaining element on the body portion, and ( ii) said digit-receiving aperture comprises a thumb-receiving aperture and is formed such that the thumb of the user passes through and anchors the thermal covering in place during installation and use.