- Soft, stretchy fabric packed with Heat of Absorption, HEAT RETENTION, moisture-wicking, and shape-retaining comfort features.- 2.25 times warmer than regular 'HEATTECH'.- Soft and fluffy brushed surface.- A simple plain crew neck T-shirt with a narrow collar.- Updated flat knit.- We’ve adjusted the hem and shoulder sewing process to achieve an even more flattering look.- Soft, high-density brushed fabric on the inside.Fabric details41% Acrylic, 37% Polyester, 18% Rayon, 4% SpandexImportedWashing instructionsMachine wash cold, gentle cycle, Do not dry clean