Flannel is a soft woven
fabric, of various fineness. Flannel was originally made from
carded wool or
worsted yarn, but is now often made from either
wool,
cotton, or
synthetic fiber. A textile made from
Scots pine fibre is called
vegetable flannel. Flannel may be brushed to create extra softness or remain unbrushed. Brushing is a mechanical process wherein a fine metal brush rubs the fabric to raise fine fibres from the loosely spun yarns. Typically, flannel has either a single- or double-sided
nap. Double-napped flannel refers to a fabric that has been brushed on both sides. If the flannel is not napped, it gains its softness through the loosely spun yarn in its woven form. Flannel is commonly used to make
tartan clothing,
blankets,
bed sheets, and
sleepwear.