Thorogood Men's Infinity FD Series 6" Waterproof Composite Safety Toe Work BootThe Infinity FD Series Work Boot is Thorogood's fully modern flagship boot for outdoor work. With low profile 6" shaft and composite safety toe, these Thorogood work boots manage to be both heavy duty and lightweight. A waterproof liner protects you from the elements while you work, and a full grain leather makes these boots as tough as you. A removable, anti friction footbed prevents blisters, and an energy returning Flex drive outsole fights fatigue