Circadian is a pullover knitting pattern by Pamela Wynne (shown here in shade Mainsail).
This is a written pattern.
There are seven sizes ranging from S (M, L, XL, 2X, 3X, 4X).
This uses between five and eight 100g balls of Zooey.
This pattern is free with a purchase of Zooey - please request the pattern in the comments box when you are at the checkout.