You posted a picture of some shorts that were made bigger with a floral fabric panel down the side. Do you have a tutorial/ know where I can find one on how to do that to a pair of jeans? Thank you for your help & thank you for this blog!! It inspired me to do visible mending on a pair of old pants and they look SUPER cool. I love your blog.
Did you mean this picture?
(Image source) [ID: side view of blue denim shorts with a dark blue floral fabric insert at the side seams.]
How to upsize a pair of pants:
Written instructions:
These shorts were upsized by the owner of the Blue Corduroy blog, who explains how you can upsize your own pants in this upsizing tutorial.
This technique is quite simple: measure out how much extra fabric you need (+seam allowance), and cut corresponding strips of a fabric with a similar fibre and weight as your pants. Open up the side seams of your trousers, insert the strips you've cut, then finish up your seams and you're done.
(Image source) [ID: a pair of cut-off blue denim shorts with opened-up side seams. A seam ripper and a pile of loose threads lie beside the shorts.]
(Image source) [ID: a pair of cut-off blue denim shorts with opened-up side seams. A strip of dark blue floral fabric has been sewn onto one of the opened seams. A second strip lies besides the pants, along with a pair of scissors.]
This tutorial shows you how to do this on a pair of shorts, but this works on full-length pants and even skirts as well.
Video tutorial:
If you prefer video tutorials, Confessions of a Refashionista also has a video on this:
Some general notes:
If your insert fabric is too thin to match your trousers' fabric, try using two layers instead of one like the video above demonstrates.
For extra comfort, use strips twice as wide as the width you need to add and size them down again by adding shirring (or some other type of elastic insert). Do this at the waistband level to get a fitted waist and flared legs, or do this across the strip's entire length to get a pair of fitted trousers with a shirred panel. This technique is also great if your size fluctuates a lot because the elastic allows the pants to expand and shrink along with your body.
The image below (by Suzy Bee Sews) shows what this looks like on a dress, but the principle's the same for pants.
(Image source) [ID: close-up of a shirred side panel in a blue dress with light blue flowers printed on the fabric.]
These inserts work best for garments that need a lot of extra space. If you only need a few centimetres, you could also try to let out your trousers instead of adding extra fabric.

















