Design and functionality are just perfect. I couldn't be happier. Upper material, sole, cushioning, Velcro function, materials, workmanship is incredibly good. but the product is almost 1 size larger (at width 5E = EEEEE). this is probably due to the huge finger compartment. which makes the shoe extremely comfortable on long walks. Changed size 10.5, 5E to size 9.5 5E.