I used to fix my daughters jeans when she was in kindergarten with the Sashiko technique https://aboderie.co.uk/blog/how-to-mend-clothes-with-japanese-sashiko

I used to fix my daughters jeans when she was in kindergarten with the Sashiko technique https://aboderie.co.uk/blog/how-to-mend-clothes-with-japanese-sashiko https://aboderie.co.uk/blog/how-to-mend-clothes-with-japanes... She was a sand digger so the knees worn out in no time. I found a nice rainbow colored thread and a long needle on etsy. Looked like one of the mends in that article just a row of straight lines. PS Loved the photo with King Charles.