Oscar jacobson jake golf caps this new line of golf caps from oscar jacobson is presented to celebrate the imminent 2017 spring summer season oscar jacobson has lead the way for more than a century in tailoring and fashion and for the past four decades oj has bought a range of golfing attire to customers that exudes quality and craftsmanship oscar jacobson jake golf caps are 100 polyester and come in a range of six different colours with the oj logo embroidered on the front panel above the