Zero G: Built with super-lightweight materials keeping your feet at ease all day long DeepComfort : Memory foam insoles provide plush comfort for your foot and excellent pressure relief Soft full grain leather uppers Round waxed lace Breathable neoprene lining Removable EVA cupsole insoles combined with layers of memory foam wrapped in mesh socklining Lightweight molded EVA outsole with rubber pads for durability and traction