Women: Begin 1 1/2 - 2 sizes up from street shoe size. Men: Begin 3 1/2 - 4 sizes up from street shoe size Constructed of soft leather, Upper constructed with sheep skin glove leather, Nylon and Lycra Spandex Suede sole patches contoured and cushioned for comfort, Split-sole with seamless, sculpted powermesh arch Plush elastic topline keeps the shoe from gapping while articulating the foot, Foam cushioned heel No drawstring or adjustment required, 5/8" one-sided plush elastic is attached and can be placed on the heel or over the instep