Propet Otto Men's Leather Casual Strap Shoe - Free Shipping. Men who live up to the latest trends and prefer to stay en vogue will be thrilled with the new Propet's Otto. Clad in tumble leather material with a hook and loop strap closure. Details: Moc toe with tumbled leather upper and wide hook and loop strap closure- lightweight- cushioned EVA and rubber outsole. Medicare Approved - for reimbursement under the Medicare Therapeutic Shoes for Persons with Diabetes Benefit (also known as the Therapeutic Shoe Bill). Removable footbed - can be removed to accommodate custom orthotics. Material: Tumbled Leather- EVA- Rubber. Boasting shoes that were engineered for comfort- design and life- Propet is an American footwear company located in Washington State. They churn out men's and women's shoes that utilize the best in cutting-edge technologies like Motion Tech- Rejuve- and other great benefits. They specialize in a wide range of types- from outdoor and casual to athletic and even diabetic footwear to deal with nerve pain. Propet has a little bit of something for everyone.