 | RefrigiWear Clark Hat | Olive. RefrigiWear âCoolâ is more than a state of mind with the Clark Hat. Made from ultra-light and breathable materials, the hat also features two air vents on each side for added breathability. Modern stitched lines and a Reggie Dog logo round out details that make it truly unique. Ultra-light and breathable construction Grommeted vents at each side RefrigiWear® Reggie Dog logo patch RefrigiWear Clark Hat | Olive... - RefrigiWear Clark Hat | Olive. |