Blogged here

The Chilly Dog’s tutorial for the Invisible circular Cast On

beginning with 103g of yarn (first skein is 51g, second is 52g)

Initial crown increases used approximately 8g of yarn

Knit to total length (end to end) of 26” (I think 4” longer than pattern states for this size) to accommodate a thick, folded brim (3.25” or so)

5.8g of yarn remaining (I used about 97g of yarn for this hat)

Post blocking, hat grew to a total length of 27” (end to end) and this is perfect with a thick, folded brim. I am thrilled with how it turned out (phew, because it took me nearly 4 months to knit a hat). In all fairness, this was a lot of knitting.