From the North American Schachenmayr website:
The basic crochet hat, worked in the round, will catch the eye of everyone on the mountain with the bright stripes worked in neon shades of Shachenmayr original Boston yarn.

This is a FREE pattern available to all visitors of the North American Schachenmayr website.

Finished dimensions:
Head circumference: 22 inches (56 cm)
Height of hat: 8¼ inches (21 cm)

Yarn Information:
A - #00171 neon green
1 skein
60 yards

B - #00136 neon pink
1 skein
60 yards

C - #00121 neon yellow
1 skein
60 yards

D - #00122 neon orange
1 skein
60 yards