Per Aspen Leaf Knits:
The Sidewinder Beanie features a chunky, swirling texture that knits up quickly. The finished hat does not require a pom pom since the design is incorporated up through the crown. The pattern includes written instructions for an adult sized hat (US standard knitting terms) and is an advanced beginner/intermediate project that requires a basic knowledge of knitting terminology and knitting in the round, special stitches are explained in the pattern. Pattern includes instructions for 2 different yarn weights.
~75yards of super bulky yarn (weight 6)/~85 yards bulky yarn (weight 5)
US 13 / 9mm circular needles/US 9 & US 10.5circulars