KEEN took the fit, durability and performance of their award-winning Targhee hikers and bolstered them with warmth, cold-weather traction and a taller profile. These winter boots for men are lined with lightweight KEEN.WARM recycled PET insulation that's rated to -25° F and retains its effectiveness if it becomes damp. Specifically designed for harsh, frigid conditions, the heavily lugged KEEN.FREEZE rubber outsole keeps you sure-footed on slick or snowy surfaces.