Wherever the site, whatever the job, Infinity FD delivers modern boot amenities and traditional Thorogood reliability that doesn’t compromise comfort for performance. The patent pending Flex-drive rear-welt construction allows for maximum flex in the toe and superior construction. Paired with that is our proprietary Anti-Fatigue high rebound sole that returns energy with every step. The combination of these two technologies delivers a relentless level of comfort and performance. With zero break-in and weather defiant protection from the elements, the Infinity FD gives you peace of mind, comfort, and confidence so you can focus on a job well done.