The BIRKENSTOCK Boston Pro is a classic shoe that can be worn all year round. It features a polyurethane midsole and an anti-slip, dynamic, and lightweight outsole, also made of polyurethane. The shoe includes an anatomically shaped cork-latex footbed, PU-coated natural leather upper, and a suede footbed lining. The sole is oil- and grease-resistant, and the shoe has an adjustable metal pin buckle.