Duofold Men's Heavyweight Double-Layer Thermal Shirt Description Duofold's warmest two layer cold weather thermal for those that like to play or need to work, no matter what the temp is outside performance fit with 360 degree stretch Features: Product Details: Package Dimensions ‏ : ‎ 9.75 x 8.5 x 1.75 inches; 1 Pounds Item model number ‏ : ‎ KEW1 Department ‏ : ‎ mens Date First Available ‏ : ‎ August 8, 2005 Manufacturer ‏ : ‎ Hanesbrands - Duofold