Free written pattern and tutorial
Written pattern
http://www.crochetwithclare.com/spiderweb-hat1.html

Video tutorial
https://youtu.be/L_bRfVMLefA

This hat can be made in 8ply/DK/Number 3 weight yarn
OR
10ply/aran/number 4 weight yarn

I use 1 ball of Red Heart Reflective grey and 1 of the peacock

https://www.bobwilson123.org/spiderweb-hat.html