Clear pattern and easy to follow, size XL fits perfectly for my little one, whose foot is 28cm (11”) long.
I used Judy’s magic cast on and worked in the round to make them seamless.

I did one first slipper exactly as explained but my son asked for rather a bootie shape so I did two others closing the upside to reach the ankle for the ribbing.

At this time I decided to add a second contrasting sole for more comfort.
It’s perfect!