No pattern is required for this easy fit yoga pant as there is no waste. Chalk out cutting lines directly onto the fabric. Working off of a rectangle, I cut a triangular gusset and inverted it, re-attaching to the leg. How wide the leg fabric is depends on how full you want the final pants to be (narrower for a tapered style, wider for a relax fit). Be careful not to cut the rise too large as it will stretch and droop some resulting in a larger drop than you might think.
Use full width of 45″ fabric and select a fabric that can be cut in either direction. (eg. up or down its length). I prefer a lightweight fabric as it gathers easily with an elastic waist.
Straighten cut ends to a right angle [90 degree].
Fold the fabric, with right sides together (RST), in half lengthwise so that selvedges align. Chalk out 2 lengths for each pant leg.
The minimum outseam length is the measurement from your waistline, over the buttock and down the leg to your heel. Take this measurement while touching your toes. Add 2″ for a waist casing, 1″ for hem allowance and 1″ for seam allowance [total = 4"]. Square across fabric width. (see cutting diagram)
The remaining piece of fabric from the leg cut with be inverted and become the leg gusset. [2 pieces for each leg].
Fold each leg portion RST and align gusset seams. Sew using ½” seam allowance. Press seam open.
Turn one leg inside out. Insert right-side-out leg into inside-out leg with RST. Sew up crotch seam using ½” seam allowance. Turn legs right side out.
Turn under ½ ” seam allowance along waist edge. Press. Turn under 1-1/2″ once more to create casing. Sew along fold edges. Casing may be for elastic or a drawcord. Leave an opening to insert drawcord or elastic.
Front and back of pants are the same, so if I use an elastic waist I sew a small button to inside CF. This “belly button” indicates the front of my pants.