Black.
Tested at both the North and South poles, the waterproof boots are constructed from durable, impermeable natural rubber and are insulated with a multi-layer system that wicks away moisture, retains body heat, controls odor, and repels cold temperatures. These are the snow boots rated to keep feet warm in temperatures as low as -148u00B0 F—a rating greater than any other boot in the world. World's Warmest Boots - Men's - 13 - Black Men's whole sizes 9-13; sizes run small, order next size up.