SEASON III 2 BIS NAP Derby stringed shoe for Men in black nappa leather with extra comfort fit. A model with classic and essential lines, combining refinement and elegance with the irreplaceable comfort that distinguishes Stonefly footwear. Its simple, understated design makes this slip-on shoe extremely versatile and suitable for both formal and informal settings. Blusoft® technology offers soft and light steps like a cat's, with an inimitable level of comfort and cushioning. PU sole, heel height (cm): 3.