- Boat shoes - Handcrafted in Portugal - Pull-up leather exterior (tannery: Italy) - Leather lining - Leather laces - Blake stitched rubber soles - Leather welt Pull-Up is a high-quality leather with magnificent variations in hue. The color of this leather lightens when stretched. So, from the very first wear, the color nuances will evolve to give your shoes a unique look. Warning: we strongly advise against applying cleansing milk to this leather, as it may cause the color nuances to disappear.