Knit wool sweater with a pattern constructed from the lights from the cardinal buoys. Guiding the sailors to safety on sea. 

Constant lights come from the North, 6 short then 1 long from the South. 9 short from the west and then 3 short from the East. 

This one fits oversize for comfort. We have learned that if you venture for one you most likely will need another colour (and sometimes another and another)