So much networking is done on the golf course these days, especially at an executive level, that it lends itself to a great gift giving situation. Windbreaker jackets are ideal for any golf course. They are also a nice rain resistant option for your employees, something everyone appreciates.
Personally, I still have every jacket I've ever been given as a gift. Now that the weather is cooling off I've pulled a few out of storage and love wearing them when jogging or near the beach. Hopefully your clients will agree!