Soft colors and 100% Organic Cotton make these yarn-dyed flannels a dream. This collection of classic plaids brings flannel to new heights with a rich crepe weave and super soft hand. This is a shirting-quality flannel that is great for apparel sewing. Machine wash warm with like colors, tumble dry low, cool iron. 'Mammoth Organic Flannel' flannel fat quarter pack, by Studio RK for Robert Kaufman Fabrics. Pack includes thirteen fat quarters. 100% Organic Cotton.