Another great slip-on from Arcopedico!. Lytech , a stylish and comfortable blend of Lycra and polyurethane that is water resistant and breathable that conforms to the shape of your foot, is great for problem feet. Patented twin arch support system, removable insoles, and a bio degradable PU non-slip sole make these shoes feel as if you have gloves on your feet. Vegan. Machine washable. Air dry.1 1/4" Heel. Medium width.