FXR Ice Pro Waterproof Ice Fishing Boots - The FXR Ice Pro Boots deliver maximum warmth and reliable comfort for extreme cold conditions. Built with 1200 g Thinsulate insulation and a fully waterproof rubber shell, they provide a 10/10 warmth rating while maintaining a flexible, low-stiffness feel. A high-traction outsole and adjustable calf gusset complete this rugged winter boot. 100% Waterproof hand-laid premium rubber construction; 1200g Thinsulate insulation; 17in Upper height; High traction rubber outsole; Flexible comfort topline binding snugs calf to keep warmth in; 5.9 lbs per pair; Adjustable calf gusset;