Garment including composite insulation material

A heat insulating garment and the like for maximizing heat retention, comprising:

• an outer fabric shell adapted to be disposed to cover a portion of the body of a wearer;
• a composite interlining sheet material for said fabric shell, said composite interlining sheet material including (i) a substantially continuous internal layer of porous material having a low heat conductivity and high resiliency, said internal layer being of a substantially uniform thickness and consistency and having a composition and thickness such that it is supple and drapable, and said internal layer having first and second surfaces, and (ii) a continuous layer of flexible reflective material adhered to said first surface of said internal layer at at least spaced intervals, said reflective material providing a reflective surface facing away from said first surface of said internal layer to decrease the emissivity of said composite sheet material and reduce the conduction of heat in a direction away from said second surface of said internal layer toward said first surface of said internal layer;
• and
• said composite interlining sheet material being disposed relative to said outer fabric shell in a manner (i) such that said continuous layer of reflective material faces and outer fabric shell and is between said outer fabric shell and said internal layer and (ii) such that the surface of said interlining sheet material facing said outer fabric shell is not bonded in complete physical contact with said outer fabric shell, whereby said continuous layer of reflective material will be disposed to face away from the body of the wearer when said outer fabric shell is disposed to cover a portion of the body of a wearer to thereby maximize heat retention.