Edit to Add: I'm VERY sorry that it has taken me so long to get back to this post with more details about making the sling! The sling is about 11 inches wide and 21 inches long. It's reversible, so you need to cut 2 pieces of cloth with these dimensions. At each end cut the cloth with a curve instead of a straight line. You sew the 2 ends together (after sewing the 2 pieces back to back and turning them), and the curve forms the pocket for the baby. You can see the seam at the bottom of the picture. I know those are terrible directions, but I'm no sewer (although I'm trying to learn!).