Rayon challis fabric has a beautiful fluid drape and soft hand. We have your favorite solids for every season! It is perfect for creating shirts, blouses, gathered skirts and flowing dresses with a lining. 58/60″ Washable Challis. 100% Rayon. The pictures are a representation of the variety of looks you will receive in your assortment. Every case is different, and you will be getting the latest trending looks in this category.