Kent Worsted, Confection Worsted, Targhee Tango Worsted, Better Breakfast Worsted, Chebris Worsted, or any soft, springy worsted weight yarn that knits to pattern gauge.
Substituting yarn and/or needles may result in an overall variation in size and elasticity.
15(17, 19) inches in circumference (blocked) to fit heads measuring up to 20(22, 24) inches around
130(160, 190) yards
16 sts and 24 rows = 4 inches in stockinette on larger needles (knit flat; unblocked)
size 9US (5.5 mm) 16-inch circular needle and DPNS or size to obtain correct gauge
size 6US (4.0 mm) 16-inch circular needle for brim or 1.5 mm smaller than gauge needle