These pants are made using McCalls 6571. The fabric is a jersey. The pattern calls for stitching the elastic to the top edge of the pant's waist and the turning to the inside like a casing. Instead of doing it the way the pattern states I shortened the pants from the top at the waist and topstitched 1 1-2 inch wide elastic at the waist edge. When I get the pants made except for the elastic at the waist and hems I try them on and check to see if the waist is going to sit where I want it which is just below my belly button. If it isn't at the right place I take them off and trim some more off the waist and then sew the elastic on.