The soles I use can be found at this URL：
www.aliexpress.com/i/32568023...
Key words: Rubber Soles Autumn Winter Hooks Soles
You can buy soles that fit the length of your feet, and the crochet method is the same no matter how big the shoe is! Do not worry!
The yarns I used were:
Chenille yarn
I didn’t measure the usage, it’s just the ones shown at the beginning of the video.
Crochet Hooks: 3.5mm
Crochet Hooks: 4.0mm