Packable UPF 50+ Facility for optional chin strap The Nullabor is for when you are out to impress. There is a deep rich luster in this full grain leather and the metal Roo logo on the side that we used to close the hand braided hat band just adds the final touch. The crown top is a little more rounded. We added double eyelets on each side for ventilation. Flexible brim wire gives the hat a great curve.