The Titleist Performance ball Marker Caps feature a magnetic ball Marker on the caps brim the Titleist brand name is displayed on the Marker & in 3D embroidery across the front two panels & the rear of the caps. This fashionable range of caps is one size fits all with size adjustment being made via a strap & buckle on the rear of the Caps; the crown of the Caps incorporates six aeration holes at the top for added ventilation.