Hold yarn doubled. This pattern is not for beginners. It uses JMCO and Magic Loop knitting. It uses a 47” - 60” long circular needle size US 17 for most of you, or a US 15 if you are a loosey-goosey.
Note- a knitter noted incorrectly that the pattern gives no guidance to yardage. Actually, it does in great detail on page one, based on a 100 gram skein a skein containing 110 yards:
Amount of yarn needed by size:
First number is number of skeins if using all same color; second is two color version with sole/instep skein quantities.)
child large (4; 2/2)
adult medium(4; 2/2)
adult large (5; 3/2)
adult X large (5; 3/2)
adult XX large (5; 3/3)
I do leave it to you to multiply 4 X 110, but as you’ll likely be substituting yarn and doing math anyway, you should be fine.