Why call this hat Xylem? The lacy eyelets and other design features reminded me of xylem under a microscope (see here, or check out the Google image search results)! It all seemed to click into place, since the color of this lovely yarn is called Sap—enjoy!
This pattern is also included in The Knitgrrl 9 booklet.
You can choose either a printed copy of the pattern, professionally printed on glossy paper or a digital download (PDF). If you would like a printed copy please let us know during checkout. If you are a guild member, own a yarn shop or would like to order copies in bulk for a knit-along, please email us at firstname.lastname@example.org