Keen Men's Revel IV Polar Insulated Winter Waterproof Hiking BootsAs warm as a down jacket with the agility of a light hiker, KEEN Revel IV Polar Insulated Waterproof Hiking Boots for Men offer comfortable support for frigid fun outside. Built for day hikes in the dead of winter, this comfortable hiker surrounds feet in the supportive comfort of uppers made of waterproof leather and performance mesh. Inside, breathable textile linings and KEEN DRY waterproof breathable membrane technology keep feet dry and