Next, cut a hole for your head (X) at the center of Measurement A. Don't make it too big, or your robe will slide off your shoulders! On each side, sew along the underside of the sleeve, leaving an opening at Y for the arms (Figure 2). Then sew from the armpit down to the bottom of the robe. Turn your robe right-side out, try it on, and adjust it for length if needed.