SwaddleDesigns blankets are designed by a nurse and are 100% premium preshrunk cotton flannel brushed soft on both sides of the fabric. Each blanket comes with our exclusive 123 Swaddle instructions sewn to the edge of the blanket (patent pending). Flannel is the fabric of choice used in hospitals across the USA to swaddle newborns. Our swaddling blankets are larger than typical receiving blankets at 42" x42" square and are proudly made in the USA.