Slip on - Calf ReverseDESCRIPTION GUIDI Shoes Collection. The brand's standard Slip On product number 27EM. Because details such as shoe laces are completely eliminated, this item tends to look more snappy than derby shoes, so the leather type is intentionally selected with reverse leather. Since it is a calf leather, it is softer and fits better than horse leather, so you can feel the improvement of the feeling of wearing as you wear them. This is a recommended pair of