I used 3D-printed parts to double up on the Solo Knit Band and it made the headset feel much better to wear.
https://www.howtogeek.com/apple-vision-pro-uncomfortable-you-should-mod-it/?utm_source=dlvr.it&utm_medium=blogger
https://www.howtogeek.com/apple-vision-pro-uncomfortable-you-should-mod-it/?utm_source=dlvr.it&utm_medium=blogger