Alexandro. The height-increasing boots. The Alexandro model is an ankle boot with a casual look. Made of suede with the 3M Scotchgard treatment, which waterproofs the leather.  The non-slip and insulating crepe sole makes them ideal for winter days. These height-increasing boots combine well with corduroy pants or jeans. For cleaning, we recommend using a mixed suede leather brush or a suede and nubuck sponge.