Choose a fabric with good stretch - mid/heavy weight pontes are perfect, though you could use a lighter weight ponte too.
This style will also work well with a stretch woven, 4 way stretch is ideal.
For the pattern envelope, we used ponte, the gray a mid weight, the bronze metallic a sturdy weight
A woven with 2 way stretch must have very good stretch and recovery. In this case, cut wider seam allowances and add a bit (12/"-1") to the crotch depth to allow for more ease and a slightly looser fit, and fit as you sew.
Construct the front and back pieces first, then sew the inseam, next the crotch.
At this point, try on the pant
Pin the side seams along stitching line, wrong sides together, and try the pant on. Make any necessary alterations to the fit before sewing the side seam
We used double thread for the topstitching to add extra definition, using a sharp point/jeans topstitching needle.