Hromin blends Lifestyle and Performance. Judy is a high end performance fin Hand Made by master fin maker John Hromin. ZR-1 is our best selling Tri-Fin thruster fin incorporating a rigid design to increase speed. For aggressive Medium to Large size riders. Highest quality construction with embedded art that will not wear off. Artwork by local surfer and artist Mitchell Arterburn. Made in the USA using a light weight rigid hand lay-up fiberglass construction. 100% Product of Southern California.