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The Most Ultimate Jean Fitting Workshop with Ron Collins - South 3

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This workshop will be started by Ron’s detail in his jeans and jean jackets in various fabrics from traditional denim, twills and linen to faux leather and gabardine.  You will see great techniques from seams, zippers, waistbands and more. Learn the different stitches that are used for topstitching and how to use heavy top-stitching and decorative stitches in your sewing machine and how to cut down the bulk in the waistband to avoid a lumpy front closure.  Ron will teach some time saving techniques for professional results in bar tacking, belt loops, hems and rivets.        

The workshop will continue with the students trying on the jean pattern in the Closet Core “Ginger” jean with a total of 22 sizes, view A from size 0-22 and view B in size 0-32.  Ron has sewn the “Ginger” pattern in both views A (low rise) and B (high rise) for you to try on!  Ron then will identify your fitting problems and give you the necessary alterations (flat seat, protruding seat, low seat, knock/bowed legs, gaping waistband, length, etc.) for your jeans before cutting into your pattern.  Also learn how to sew a hidden stay front to create a smooth and clean silhouette, giving the appearance of a flatter front.  Sew the world’s best fly zipper technique that moves the zipper further into the garment and prevents the zipper being exposed at the center front. 



  • Fashion Fabric (Washed and dried – twice)- suggestions: denim, linen, corduroy, gabardine, and twills.  I used a 8 oz. stretch denim (2% lyrca) for the “Ginger” jeans which is a great fiber content for this cut. 

  • Pattern: Closet Core “Ginger” I will have all 28 sizes for you to try on: View A in sizes 0-32 and view B in sizes 0 – 20. Size range for 22 –32 is only available in PDF format for view A only.

  • Pocket Lining (broad cloth or quilting weight fabric)

  • Thread

  • Interfacing: I suggest to use a medium weight weft interfacing like “Style Maker 602”.

  • Contrasting top stitching thread (optional)

  • Schmetz Denim (H-J) Needles for Sewing Machine and Serger

                    8 oz. denim – needle size 80/12

                   10 oz. denim - needle size 80/12

                   12 oz. denim - needle size 90/14 

  • Pins

  • Scissors

  • Marking Pen

  • Measuring Tape

  • Zipper: You can use a dress weight zipper or if you prefer a metal teeth zipper

  • Steam-a-seam- lite (1/4” wide)

  • Thread for serger

  • Rivets (optional)

  • Your Sewing machine in good working order with usual accessories (you must know how to use your machine)

  • Thread for you sewing machine

  • Serger (if you have one)

  • Thread for serger

  • Steam-a-seam- lite (1/4” wide)


Ron will have all 37 sizes in the 3 different patterns for you to try on:

“Ginger” (view A and B) in sizes 0 – 20

        waist 24” to 39”

        hip “33 to 48”

Eleonore (one view) in sizes 4 – 22

        waist 27’ to 44’

        hip 36” to 53”

Ron has also graded these patterns up in sizes if need be. Also, if you are working with another pattern besides the two on the supply list, it is best that you show up with a muslin in that pattern to get a head start on the fitting. Just make sure that the fabric that you are using for the muslin is very similar to the fabric you are using in the final jean!

Instructor: Ron Collins

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Included Materials



This class cannot be purchased online. Please contact the store for more information.