I make simple cotton boxer shorts to team with singlet tops for pyjamas and the elastic had given up in this pair.

I intended to replace the elastic, however, they had been languishing on the ‘to do’ pile on my sewing table.  Rather than simply replacing the 2 rows of 6mm elastic, I decided to use this elastic which I had salvaged from some of GMan’s worn out underwear.

The first step was to remove the remnant of the underwear fabric.

The elastic attached to the upper edge  of the shorts.

Then turned over and stitched again.

The boxers are now ready to wear again with no extra cost and no wastage from the worn out underwear.  As a side note, the worn out cotton underwear makes fantastic cleaning cloths and dusters.