Available sizes: 3.5,4,6,7.5,8,9.5,10.5. Hummel Shoes (Trainers) SLIMMER STADIL LOW. Available in women's sizes. by hummel. These black canvas and leather Hummel trainers have an original look that will add a stylish touch to any wardrobe. In addition to their great style, these shoes provide both comfort and support for your feet.