smartPATTERN sewing instructions for back yoke and seat seam of jeans- Thumbnail

Sew yoke and back seam on jeans trousers #HH01

In the following video and illustrated text instructions, I explain step by step how I sew the back yoke (also known as saddle) to the jeans and close the back seam.

Video instructions:

The video instructions are currently only available in German. Via settings you can have YouTube display the subtitles in your language of choice.

Pattern pieces made from shell fabric:

  • back pieces (HH) – 1 pair
  • back yoke (HHP) – 1 pair

Tools and aids:

  • Pins and/or clips
  • Hammer and pad if necessary

2. Sew on the back yoke

smartPATTERN sewing instructions for saddle and seat seam of a pair of denim pants - cut-out back trouser parts
Adjusted hind pants parts

First I connect the yoke and back. To do this, I place the yoke as it belongs on the back

smartPATTERN sewing instructions for saddle and seat seam of denim trousers - pinning saddle to back trousers
Pinning the saddle to the back pieces

I fold the yoke right over right onto the back. To avoid twisting the yoke, I make sure that the notches on the lower edge and the back meet exactly when putting them together.

smartPATTERN sewing instructions for dividing seam of a pair of jeans - sewing the dividing seam together
Sew the dividing seam together

I sew the seam together using a straight stitch with the seam width marked on the pattern.

3. Trying on the pants

Before we go any further, I recommend preparing your jeans for fitting in just a few steps. You can find the instructions here.

4. Finish the yoke

The picture shows the neatened saddle seam
The serged yoke seam.

I finish the connecting seam between the yoke and the back with the overlock machine. The yoke is at the top because I want to press the dividing seam down and overlock it and then the upper, beautiful side of the overlock seam will be visible. Whether you topstitch the seam up or down is a matter of how you like it. The yoke looks smaller when the top is overstitched.

The picture shows how the saddle seam is ironed.
The saddle seam is ironed.

Here I press the seam allowances down, as previously explained.

smartPATTERN sewing instructions for saddle and seat seam of a pair of jeans - overstitch saddle dividing seam
Topstitch saddle dividing seam

I then topstitch with 2+8 mm from the seam using contrasting colored thread.

smartPATTERN sewing instructions for saddle and seat seam of a pair of jeans - attached saddle parts
Attached saddle parts

This is what the two back pieces with yoke look like.

5. Close the back seat seam

smartPATTERN sewing instructions for saddle and seat seam of a pair of jeans - pin seat seam together
Pin the seat seam together

I now lay the back peices right sides together to close the seat seam. To do this, I first fix the crossing point of the yoke seams so that they lie exactly on top of each other. Then I pin the remaining part of the seat seam together, topstitch the seam and finish it with an overlock seam.

smartPATTERN sewing instructions for saddle and seat seam of a pair of jeans - stretching the seam allowance of the seat seam
Stretch the seam allowance of the seat seam

The seam allowance of the back seam is now stretched in the curve by pressing.

smartPATTERN sewing instructions for saddle and seat seam of a pair of jeans - iron over seat seam
Iron over the seat seam

I press this seam allowance over to the left side of the pants, as it will later be overlocked in this direction. Therefore, when sewing the overlock seam, I started at the top of the waistband edge and the right trouser leg was facing me.

Tip

smartPATTERN sewing instructions for the saddle and seat seam of a pair of jeans - knocking the seam flat
Tap the seam flat

The point where the saddle and back seams cross is very thick, depending on the material. I therefore place a pad under the material, cover the area with a scrap piece of fabric so as not to damage the pants, and tap it flat with a hammer.

smartPATTERN sewing instructions for saddle and seat seam of a pair of jeans - topstitching the seat seam
Topstitch the seat seam

Finally, I topstitch the seam on the left side of the trousers with a 2+8 mm edge distance and contrasting colored thread.

6. Finished back pieces

smartPATTERN sewing instructions for saddle and seat seam of a pair of jeans - finished joined seat seam
finished buttock seam

And this is what the back look like with topstiched yoke and seat seams.

Below you will find the link to the next step:

If you’re not quite ready yet and perhaps want to start at the beginning, you’ll find some links here: