Hades / Metropolis Shoes KRULL. The long awaited chunky heel, under the knee boot has arrived! The heel is 4 inches with a 1.5 inch platform in the front. Adored with metal chains and screw topped rivets. A unique designedÂ metallicÂ styledÂ heel. BuckleÂ strapÂ acrossÂ the front. Easy access inside zipper. This boot is quiteÂ versatile and compliments many an outfit.