The Magknits version has errata. The Ravelry download has been corrected.

Size: One size fits most;
Finished circumference: 19” 48.5 cm unstretched

Materials:
1 skein Plymouth Yarn Encore (75% acrylic, 25% wool; 200 yd 180 m per 100 g), color #045

US 7 4.5 mm double pointed needles
US 7 4.5 mm straight needles

tapestry needle,
safety pin or removable marker,
one sheet Quick Count Plastic Canvas or other suitable material for brim