The BIRKENSTOCK Boston Pro is a classic shoe suitable for year-round wear. 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, suede footbed lining, and an adjustable metal pin buckle. The outsole is oil- and grease-resistant.