This same method can be used to created a "flair" on a pants leg. Simply make a cut in the pattern to the knee area...or as far up as you desire...on both back and front legs...pull open the pattern leg to the width you want the flair to be...then cut on the cut line as usual. When stitched, the pants leg will fall in a "flair" or "boot cut" at the bottom edge. Been using this method for 40 years to make jeans for my daughters!