Outer – 100% Acrylic / Lining – 100% Polyester They are available in one size and in 2 colours; black and purple. Headband – A great alternative to regular hats, as you can wear your hair however you want, whether in a bun or ponytail. Heat Holders Yarn – Specially developed thermal yarn provides high performance insulation against cold with superior moisture breathing abilities. Heat Weaver Lining – HeatWeaver insulation is a plush fur-like thermal lining that maximises the amount of warm air held close to the skin. Cable Knit – These ladies headbands are stylish and warm, the outer being a classic chunky cable knit design, making it fit in with any winter fashion.