Adjusting The Jeans Pattern Into Smart Trousers

I’ve been wanting to make some smart trousers for a while now, I bought Simplicity 1696 Perfect fit about 18 months ago. Every so often I take the pattern out then decided it all looks too complicated and put it back.

After I finished my black jeans I re-traced the pattern and was left with the pieced together and scribbled on original pattern. Instead of throwing it away I thought I’d have a go at changing it into a pair of smart trousers.

I started with the back pieces and trimmed the seam allowance from the lower edge of the yoke and the top edge of the main back piece.

pattern back 1 (1824 x 1368)

To join the two edges together I needed to cut and open the yoke in 3 places. This gave me 3 small darts which in total measured 2.2cm.

I turned this into 2 darts. The position of the welt pocket followed the line of the top of the original pocket position.

pattern back 2(1824 x 1368)

Then on to the front. All that needed doing here was to draw on the new pocket shaping. I started by adding back in the pocket corner then drawing on a slanted pocket opening, new shape pocket corner, pocket bag and a facing for the pocket opening. Then traced the new pieces off adding seam allowances.

pattern front (1824 x 1368)

Finally I made a mock up of the back welt pocket with the darts above it to make sure it was going to work.

test welt pocket (1824 x 1368)

Test welt pocket

I didn’t make pattern pieces for the welt pocket and bag and just cut the shapes when I needed them.

It was a really easy process to alter the pattern. I’ve now made up the trousers and will do a separate post on sewing up 🙂



11 thoughts on “Adjusting The Jeans Pattern Into Smart Trousers

    • Thank you! It’s only just over a year ago I attempted my first pair and I still have to follow Craftsy when I’m putting in the fly zipper.

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