cotton printed flannel fabric 20x10 40x42 42/43" check plaid printed reactive/pigment shirt pajama pants blanket flannelette I SummarizeQ1: What is flannel?Flannel is a warm fabric of various degrees of weight and fineness. It is a plain-weave cloth heavily brushed for softness. Flannel is often used in apparel and sheets, and can be made of cotton or cotton/polyester. The brushing process ...