Differential thermal garment

A thermal garment formed of flexible insulating material for materially retarding the flow of heat from the zone surrounding the muscles and tissues of a selected manipulatable human body appendage and the adjoining major appendage-connecting muscles of an athlete or other person needing or desiring to maintain warmth in an appendage and its connecting muscles and with need or desire to permit a relatively greater degree of cooling of adjacent portions of the body, comprising:

• a sleeve extending along and about the length of said appendage desired to be kept warm, which in the case of an arm is down the length of the arm to the wrist zone,
• a skirt connecting with said sleeve and extending substantially about and over the major body muscles which connect the main body of the athlete to said appendage, which muscles in the case of an arm appendage are the adjacent deltoid, pectoralis, teres major and teres minor muscle groups,
• said sleeve terminating adjacent the edges of such muscle groups,
• and attaching means for removably attaching said skirt in generally close-fitting relationship along its periphery, to the exterior surface of an athletic uniform or other body-covering clothing worn by the athlete or other wearer, whereby body heat loss from said appendage and the adjoining main body-connecting and appendage-manipulating muscles will be thereby materially retarded in the area selectively covered by said garment, while the adjoining remainder of the body not covered by said garment may cool at a differentially greater rate as a function of the insulating quality of said uniform and/or such other garment or other covering as may be over the remaining portion of the body, or the absence of any such covering as the case may be, such as is normally the case with body areas not normally covered by a uniform or other clothing, such as the face and hands.