From the North American Schachenmayr website:
This hat will look great anywhere - using three shades of Schachenmayr original Boston to create your own statement look. Hat is worked in rounds of single crochet to make it sturdy for rugged sports and lots of wear.

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 - #00121 neon yellow
1 skein
60 yards

B - #00171 neon green
1 skein
60 yards