Material Composition:39% Polyester, 32% Acrylic, 21% Viscose, 8% ElastaneCare Instructions:Machine wash up to 40 degrees, gentle cycle, Do not Dry CleanDescription:Keep warm with HEATTECH: thermal clothing technology from Japan. This innovative fabric absorbs and retains body heat to keep you warm. Fibres one tenth the width of a human hair trap air to prevent warmth from escaping, while wicking away moisture from the body to keep you dry. These ultrafine fibres provide a smooth feel against the skin and can even neutralise odours to keep you feeling fresh.Our classic HEATTECH is thin and lightweight; delivering warmth while sitting easily under other layers, but can also be worn as a solo layer around the house for lightweight warmth. Wonderfully warm and incredibly stretchy. A handy layering piece.- Ultra Stretch fabric for exceptional comfort. – Smooth to the touch. – With deodorizing features. – Shorter sleeves stay hidden under outer layers. – Ideal as an inner layer or layering piece.- Images shown may include colours that are not available.