Created by Grandoe, a fifth-generation family-owned company famous for its luxurious comfort products, Smartdogs are "your feet's best friend." The Smartdogs comfort system is so revolutionary it's patented! A unique multi-colored dual-density outsole and an integrated 4-zone honeycomb air-cushioned insole achieve the ideal balance of durability, flexibility, skid resistance and comfort. Unlike ordinary slippers, the comfort of Smartdogs is long-lasting due to an exceptionally soft and flexible air-cushioned footbed. The anatomically contoured footbed absorbs and returns energy to soothe and invigorate your feet, minimizing stress and foot fatigue.